402662066 has 16 divisors (see below), whose sum is σ = 631895040. Its totient is φ = 192239520.

The previous prime is 402662059. The next prime is 402662101. The reversal of 402662066 is 660266204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48386 + ... + 56093.

It is an arithmetic number, because the mean of its divisors is an integer number (39493440).

Almost surely, 2^402662066 is an apocalyptic number.

402662066 is a deficient number, since it is larger than the sum of its proper divisors (229232974).

402662066 is a wasteful number, since it uses less digits than its factorization.

402662066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104569.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 402662066 is about 20066.4412888783. The cubic root of 402662066 is about 738.4372095690.

The spelling of 402662066 in words is "four hundred two million, six hundred sixty-two thousand, sixty-six".