402664622 has 8 divisors (see below), whose sum is σ = 604166472. Its totient is φ = 201275800.

The previous prime is 402664607. The next prime is 402664627. The reversal of 402664622 is 226466204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402664627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18704 + ... + 33987.

It is an arithmetic number, because the mean of its divisors is an integer number (75520809).

Almost surely, 2^402664622 is an apocalyptic number.

402664622 is a deficient number, since it is larger than the sum of its proper divisors (201501850).

402664622 is a wasteful number, since it uses less digits than its factorization.

402664622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56514.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 402664622 is about 20066.5049772002. The cubic root of 402664622 is about 738.4387720384.

It can be divided in two parts, 40 and 2664622, that added together give a palindrome (2664662).

The spelling of 402664622 in words is "four hundred two million, six hundred sixty-four thousand, six hundred twenty-two".