402647527400 has 48 divisors (see below), whose sum is σ = 958988581740. Its totient is φ = 157130739200.

The previous prime is 402647527397. The next prime is 402647527409. The reversal of 402647527400 is 4725746204.

It can be written as a sum of positive squares in 6 ways, for example, as 180793339204 + 221854188196 = 425198^2 + 471014^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (402647527409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24543479 + ... + 24559878.

Almost surely, 2^402647527400 is an apocalyptic number.

402647527400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402647527400 is an abundant number, since it is smaller than the sum of its proper divisors (556341054340).

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

402647527400 is a wasteful number, since it uses less digits than its factorization.

402647527400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49103414 (or 49103405 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 41.

The spelling of 402647527400 in words is "four hundred two billion, six hundred forty-seven million, five hundred twenty-seven thousand, four hundred".