45720037 has 16 divisors (see below), whose sum is σ = 51871680. Its totient is φ = 39916800.

The previous prime is 45720011. The next prime is 45720041. The reversal of 45720037 is 73002754.

It is not a de Polignac number, because 45720037 - 2²³ = 37331429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45719987 and 45720014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45720007) 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, 105373 + ... + 105805.

It is an arithmetic number, because the mean of its divisors is an integer number (3241980).

Almost surely, 2^45720037 is an apocalyptic number.

It is an amenable number.

45720037 is a deficient number, since it is larger than the sum of its proper divisors (6151643).

45720037 is a wasteful number, since it uses less digits than its factorization.

45720037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 45720037 is about 6761.6593377661. The cubic root of 45720037 is about 357.5764082692.

The spelling of 45720037 in words is "forty-five million, seven hundred twenty thousand, thirty-seven".