52340431 has 16 divisors (see below), whose sum is σ = 63479808. Its totient is φ = 42501600.

The previous prime is 52340429. The next prime is 52340443. The reversal of 52340431 is 13404325.

It is a cyclic number.

It is not a de Polignac number, because 52340431 - 2¹ = 52340429 is a prime.

It is a super-2 number, since 2×52340431² = 5479041434531522, 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 (52340401) 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, 1471 + ... + 10336.

It is an arithmetic number, because the mean of its divisors is an integer number (3967488).

Almost surely, 2^52340431 is an apocalyptic number.

52340431 is a deficient number, since it is larger than the sum of its proper divisors (11139377).

52340431 is a wasteful number, since it uses less digits than its factorization.

52340431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11862.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 52340431 is about 7234.6686862634. The cubic root of 52340431 is about 374.0638718637.

Adding to 52340431 its reverse (13404325), we get a palindrome (65744756).

The spelling of 52340431 in words is "fifty-two million, three hundred forty thousand, four hundred thirty-one".