400274780530800 has 120 divisors (see below), whose sum is σ = 1465386910850176. Its totient is φ = 91491378405120.

The previous prime is 400274780530789. The next prime is 400274780530811. The reversal of 400274780530800 is 8035087472004.

It is an interprime number because it is at equal distance from previous prime (400274780530789) and next prime (400274780530811).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 400274780530800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23825871394 + ... + 23825888193.

Almost surely, 2^{400274780530800} is an apocalyptic number.

400274780530800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400274780530800 is an abundant number, since it is smaller than the sum of its proper divisors (1065112130319376).

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

400274780530800 is a wasteful number, since it uses less digits than its factorization.

400274780530800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47651759615 (or 47651759604 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 400274780530800 in words is "four hundred trillion, two hundred seventy-four billion, seven hundred eighty million, five hundred thirty thousand, eight hundred".