402642624462 has 32 divisors (see below), whose sum is σ = 870316544160. Its totient is φ = 123449141760.

The previous prime is 402642624443. The next prime is 402642624469. The reversal of 402642624462 is 264426246204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402642624469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9163287 + ... + 9207122.

It is an arithmetic number, because the mean of its divisors is an integer number (27197392005).

Almost surely, 2^402642624462 is an apocalyptic number.

402642624462 is an abundant number, since it is smaller than the sum of its proper divisors (467673919698).

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

402642624462 is a wasteful number, since it uses less digits than its factorization.

402642624462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18370708.

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

The spelling of 402642624462 in words is "four hundred two billion, six hundred forty-two million, six hundred twenty-four thousand, four hundred sixty-two".