402425310400 has 84 divisors (see below), whose sum is σ = 990435404952. Its totient is φ = 160934748160.

The previous prime is 402425310383. The next prime is 402425310403. The reversal of 402425310400 is 4013524204.

It is a happy number.

It is a super-2 number, since 2×402425310400² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (402425310403) 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, 7979664 + ... + 8029936.

It is an arithmetic number, because the mean of its divisors is an integer number (11790897678).

Almost surely, 2^402425310400 is an apocalyptic number.

402425310400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402425310400 is an abundant number, since it is smaller than the sum of its proper divisors (588010094552).

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

402425310400 is a wasteful number, since it uses less digits than its factorization.

402425310400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55298 (or 55283 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 402425310400 its reverse (4013524204), we get a palindrome (406438834604).

The spelling of 402425310400 in words is "four hundred two billion, four hundred twenty-five million, three hundred ten thousand, four hundred".