34020831 has 16 divisors (see below), whose sum is σ = 49230720. Its totient is φ = 20772960.

The previous prime is 34020829. The next prime is 34020901. The reversal of 34020831 is 13802043.

It is a happy number.

It is not a de Polignac number, because 34020831 - 2¹ = 34020829 is a prime.

It is a super-2 number, since 2×34020831² = 2314833883861122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 34020798 and 34020807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34020821) 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, 1780 + ... + 8438.

It is an arithmetic number, because the mean of its divisors is an integer number (3076920).

Almost surely, 2^34020831 is an apocalyptic number.

34020831 is a deficient number, since it is larger than the sum of its proper divisors (15209889).

34020831 is a wasteful number, since it uses less digits than its factorization.

34020831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6806.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 34020831 is about 5832.7378648453. The cubic root of 34020831 is about 324.0273277514.

Adding to 34020831 its reverse (13802043), we get a palindrome (47822874).

The spelling of 34020831 in words is "thirty-four million, twenty thousand, eight hundred thirty-one".