20452037 has 16 divisors (see below), whose sum is σ = 23794560. Its totient is φ = 17436672.

The previous prime is 20452031. The next prime is 20452039. The reversal of 20452037 is 73025402.

It is a cyclic number.

It is not a de Polignac number, because 20452037 - 2⁴ = 20452021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452031) 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, 6053 + ... + 8805.

It is an arithmetic number, because the mean of its divisors is an integer number (1487160).

Almost surely, 2^20452037 is an apocalyptic number.

It is an amenable number.

20452037 is a deficient number, since it is larger than the sum of its proper divisors (3342523).

20452037 is a wasteful number, since it uses less digits than its factorization.

20452037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20452037 is about 4522.3928400792. The cubic root of 20452037 is about 273.4715737696.

Adding to 20452037 its reverse (73025402), we get a palindrome (93477439).

The spelling of 20452037 in words is "twenty million, four hundred fifty-two thousand, thirty-seven".