403279964472 has 512 divisors, whose sum is σ = 1395051724800. Its totient is φ = 93978662400.

The previous prime is 403279964419. The next prime is 403279964489. The reversal of 403279964472 is 274469972304.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 51154243 + ... + 51162125.

It is an arithmetic number, because the mean of its divisors is an integer number (2724710400).

Almost surely, 2^403279964472 is an apocalyptic number.

403279964472 is a gapful number since it is divisible by the number (42) 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 403279964472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697525862400).

403279964472 is an abundant number, since it is smaller than the sum of its proper divisors (991771760328).

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

403279964472 is a wasteful number, since it uses less digits than its factorization.

403279964472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8007 (or 8003 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 57.

The spelling of 403279964472 in words is "four hundred three billion, two hundred seventy-nine million, nine hundred sixty-four thousand, four hundred seventy-two".