1223494632 has 80 divisors (see below), whose sum is σ = 3454133760. Its totient is φ = 404593056.

The previous prime is 1223494619. The next prime is 1223494633. The reversal of 1223494632 is 2364943221.

1223494632 is a `hidden beast` number, since 12 + 2 + 3 + 4 + 9 + 4 + 632 = 666.

It is a super-2 number, since 2×1223494632² = 2993878229065630848, which contains 22 as substring.

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 not an unprimeable number, because it can be changed into a prime (1223494633) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74863 + ... + 89729.

It is an arithmetic number, because the mean of its divisors is an integer number (43176672).

Almost surely, 2^1223494632 is an apocalyptic number.

1223494632 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 1223494632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1727066880).

1223494632 is an abundant number, since it is smaller than the sum of its proper divisors (2230639128).

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

1223494632 is a wasteful number, since it uses less digits than its factorization.

1223494632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15012 (or 14999 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 1223494632 is about 34978.4881319934. The cubic root of 1223494632 is about 1069.5490084138.

The spelling of 1223494632 in words is "one billion, two hundred twenty-three million, four hundred ninety-four thousand, six hundred thirty-two".