421524252452400 has 120 divisors (see below), whose sum is σ = 1354624434868224. Its totient is φ = 112045031635200.

The previous prime is 421524252452341. The next prime is 421524252452417. The reversal of 421524252452400 is 4254252425124.

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

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, 564369904 + ... + 565116303.

Almost surely, 2^{421524252452400} is an apocalyptic number.

421524252452400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421524252452400 is an abundant number, since it is smaller than the sum of its proper divisors (933100182415824).

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

421524252452400 is a wasteful number, since it uses less digits than its factorization.

421524252452400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129486539 (or 1129486528 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 42.

The spelling of 421524252452400 in words is "four hundred twenty-one trillion, five hundred twenty-four billion, two hundred fifty-two million, four hundred fifty-two thousand, four hundred".