20698272 has 72 divisors (see below), whose sum is σ = 67275936. Its totient is φ = 5913216.

The previous prime is 20698261. The next prime is 20698273. The reversal of 20698272 is 27289602.

20698272 = T₃₁₃ + T₃₁₄ + ... + T₅₃₆.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-3 number, since 3×20698272³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20698273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3118 + ... + 7149.

It is an arithmetic number, because the mean of its divisors is an integer number (934388).

Almost surely, 2^20698272 is an apocalyptic number.

It is an amenable number.

20698272 is an abundant number, since it is smaller than the sum of its proper divisors (46577664).

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

20698272 is a wasteful number, since it uses less digits than its factorization.

20698272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290 (or 10279 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 20698272 is about 4549.5353608913. The cubic root of 20698272 is about 274.5646975414.

The spelling of 20698272 in words is "twenty million, six hundred ninety-eight thousand, two hundred seventy-two".