402468433440 has 96 divisors (see below), whose sum is σ = 1268124076800. Its totient is φ = 107295412224.

The previous prime is 402468433429. The next prime is 402468433487. The reversal of 402468433440 is 44334864204.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 402468433392 and 402468433401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1661161 + ... + 1887959.

It is an arithmetic number, because the mean of its divisors is an integer number (13209625800).

Almost surely, 2^402468433440 is an apocalyptic number.

402468433440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402468433440 is an abundant number, since it is smaller than the sum of its proper divisors (865655643360).

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

402468433440 is a wasteful number, since it uses less digits than its factorization.

402468433440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230514 (or 230506 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 402468433440 in words is "four hundred two billion, four hundred sixty-eight million, four hundred thirty-three thousand, four hundred forty".