34123431 has 16 divisors (see below), whose sum is σ = 46212320. Its totient is φ = 22394880.

The previous prime is 34123423. The next prime is 34123447. The reversal of 34123431 is 13432143.

It is not a de Polignac number, because 34123431 - 2³ = 34123423 is a prime.

It is a super-2 number, since 2×34123431² = 2328817086423522, 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 = 34123398 and 34123407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34163431) 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, 78591 + ... + 79023.

It is an arithmetic number, because the mean of its divisors is an integer number (2888270).

Almost surely, 2^34123431 is an apocalyptic number.

34123431 is a deficient number, since it is larger than the sum of its proper divisors (12088889).

34123431 is a wasteful number, since it uses less digits than its factorization.

34123431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its digits is 864, while the sum is 21.

The square root of 34123431 is about 5841.5264272277. The cubic root of 34123431 is about 324.3527346511.

Adding to 34123431 its reverse (13432143), we get a palindrome (47555574).

The spelling of 34123431 in words is "thirty-four million, one hundred twenty-three thousand, four hundred thirty-one".