1449634680 has 144 divisors (see below), whose sum is σ = 5101813080. Its totient is φ = 356818176.

The previous prime is 1449634673. The next prime is 1449634699. The reversal of 1449634680 is 864369441.

1449634680 is a `hidden beast` number, since 1 + 4 + 4 + 9 + 634 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48927 + ... + 72753.

Almost surely, 2^1449634680 is an apocalyptic number.

1449634680 is a gapful number since it is divisible by the number (10) 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 1449634680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2550906540).

1449634680 is an abundant number, since it is smaller than the sum of its proper divisors (3652178400).

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

1449634680 is a wasteful number, since it uses less digits than its factorization.

1449634680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23870 (or 23850 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 1449634680 is about 38074.0683405386. The cubic root of 1449634680 is about 1131.7561332942.

The spelling of 1449634680 in words is "one billion, four hundred forty-nine million, six hundred thirty-four thousand, six hundred eighty".