20274031 has 4 divisors (see below), whose sum is σ = 20928064. Its totient is φ = 19620000.

The previous prime is 20274019. The next prime is 20274041. The reversal of 20274031 is 13047202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20274031 - 2¹¹ = 20271983 is a prime.

It is a super-2 number, since 2×20274031² = 822072665977922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326970 + ... + 327031.

It is an arithmetic number, because the mean of its divisors is an integer number (5232016).

Almost surely, 2^20274031 is an apocalyptic number.

20274031 is a deficient number, since it is larger than the sum of its proper divisors (654033).

20274031 is an equidigital number, since it uses as much as digits as its factorization.

20274031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654032.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 20274031 is about 4502.6693194149. The cubic root of 20274031 is about 272.6758666108.

The spelling of 20274031 in words is "twenty million, two hundred seventy-four thousand, thirty-one".