662020872 has 64 divisors (see below), whose sum is σ = 1754688000. Its totient is φ = 207774720.

The previous prime is 662020847. The next prime is 662020873. The reversal of 662020872 is 278020266.

It is not an unprimeable number, because it can be changed into a prime (662020873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15504 + ... + 39552.

It is an arithmetic number, because the mean of its divisors is an integer number (27417000).

Almost surely, 2^662020872 is an apocalyptic number.

662020872 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662020872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (877344000).

662020872 is an abundant number, since it is smaller than the sum of its proper divisors (1092667128).

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

662020872 is a wasteful number, since it uses less digits than its factorization.

662020872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24126 (or 24122 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 662020872 is about 25729.7662639986. The cubic root of 662020872 is about 871.5464949591.

The spelling of 662020872 in words is "six hundred sixty-two million, twenty thousand, eight hundred seventy-two".