20701968 has 40 divisors (see below), whose sum is σ = 61121088. Its totient is φ = 5914752.

The previous prime is 20701951. The next prime is 20701973. The reversal of 20701968 is 86910702.

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, 30471 + ... + 31142.

Almost surely, 2^20701968 is an apocalyptic number.

20701968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20701968 is an abundant number, since it is smaller than the sum of its proper divisors (40419120).

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

20701968 is a wasteful number, since it uses less digits than its factorization.

20701968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61631 (or 61625 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 20701968 is about 4549.9415380860. The cubic root of 20701968 is about 274.5810391749.

The spelling of 20701968 in words is "twenty million, seven hundred one thousand, nine hundred sixty-eight".