20232357 has 16 divisors (see below), whose sum is σ = 27461952. Its totient is φ = 13248000.

The previous prime is 20232353. The next prime is 20232371. The reversal of 20232357 is 75323202.

It is not a de Polignac number, because 20232357 - 2² = 20232353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232353) 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, 72903 + ... + 73179.

It is an arithmetic number, because the mean of its divisors is an integer number (1716372).

Almost surely, 2^20232357 is an apocalyptic number.

It is an amenable number.

20232357 is a deficient number, since it is larger than the sum of its proper divisors (7229595).

20232357 is a wasteful number, since it uses less digits than its factorization.

20232357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20232357 is about 4498.0392394909. The cubic root of 20232357 is about 272.4889067672.

Adding to 20232357 its reverse (75323202), we get a palindrome (95555559).

The spelling of 20232357 in words is "twenty million, two hundred thirty-two thousand, three hundred fifty-seven".