20074831 has 8 divisors (see below), whose sum is σ = 23563040. Its totient is φ = 16741728.

The previous prime is 20074801. The next prime is 20074843. The reversal of 20074831 is 13847002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20074831 - 2⁹ = 20074319 is a prime.

It is a super-2 number, since 2×20074831² = 805997679357122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20074796 and 20074805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20074801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38496 + ... + 39013.

It is an arithmetic number, because the mean of its divisors is an integer number (2945380).

Almost surely, 2^20074831 is an apocalyptic number.

20074831 is a deficient number, since it is larger than the sum of its proper divisors (3488209).

20074831 is an equidigital number, since it uses as much as digits as its factorization.

20074831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77553.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20074831 is about 4480.4945039582. The cubic root of 20074831 is about 271.7798779576.

The spelling of 20074831 in words is "twenty million, seventy-four thousand, eight hundred thirty-one".