662120478 has 24 divisors (see below), whose sum is σ = 1442893608. Its totient is φ = 219430032.

The previous prime is 662120461. The next prime is 662120497. The reversal of 662120478 is 874021266.

662120478 is a `hidden beast` number, since 6 + 62 + 120 + 478 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103200 + ... + 109427.

It is an arithmetic number, because the mean of its divisors is an integer number (60120567).

Almost surely, 2^662120478 is an apocalyptic number.

662120478 is an abundant number, since it is smaller than the sum of its proper divisors (780773130).

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

662120478 is a wasteful number, since it uses less digits than its factorization.

662120478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212808 (or 212805 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 662120478 is about 25731.7018092469. The cubic root of 662120478 is about 871.5902030003.

The spelling of 662120478 in words is "six hundred sixty-two million, one hundred twenty thousand, four hundred seventy-eight".