402087022 has 4 divisors (see below), whose sum is σ = 603130536. Its totient is φ = 201043510.

The previous prime is 402087017. The next prime is 402087031. The reversal of 402087022 is 220780204.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100521754 + ... + 100521757.

It is an arithmetic number, because the mean of its divisors is an integer number (150782634).

Almost surely, 2^402087022 is an apocalyptic number.

402087022 is a deficient number, since it is larger than the sum of its proper divisors (201043514).

402087022 is a wasteful number, since it uses less digits than its factorization.

402087022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201043513.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 402087022 is about 20052.1076697688. The cubic root of 402087022 is about 738.0855199647.

The spelling of 402087022 in words is "four hundred two million, eighty-seven thousand, twenty-two".