1243674432 has 448 divisors, whose sum is σ = 4915814400. Its totient is φ = 297768960.

The previous prime is 1243674391. The next prime is 1243674449. The reversal of 1243674432 is 2344763421.

1243674432 is a `hidden beast` number, since 124 + 36 + 74 + 432 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1729369 + ... + 1730087.

It is an arithmetic number, because the mean of its divisors is an integer number (10972800).

Almost surely, 2^1243674432 is an apocalyptic number.

1243674432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243674432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2457907200).

1243674432 is an abundant number, since it is smaller than the sum of its proper divisors (3672139968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243674432 is a wasteful number, since it uses less digits than its factorization.

1243674432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 755 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 1243674432 is about 35265.7685581925. The cubic root of 1243674432 is about 1075.3972015524.

It can be divided in two parts, 12436 and 74432, that added together give a palindrome (86868).

The spelling of 1243674432 in words is "one billion, two hundred forty-three million, six hundred seventy-four thousand, four hundred thirty-two".