45042437 has 4 divisors (see below), whose sum is σ = 49137216. Its totient is φ = 40947660.

The previous prime is 45042433. The next prime is 45042443. The reversal of 45042437 is 73424054.

45042437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45042437 - 2² = 45042433 is a prime.

It is a super-2 number, since 2×45042437² = 4057642261797938, 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 (45042433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2047373 + ... + 2047394.

It is an arithmetic number, because the mean of its divisors is an integer number (12284304).

Almost surely, 2^45042437 is an apocalyptic number.

It is an amenable number.

45042437 is a deficient number, since it is larger than the sum of its proper divisors (4094779).

45042437 is a wasteful number, since it uses less digits than its factorization.

45042437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094778.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 45042437 is about 6711.3662543479. The cubic root of 45042437 is about 355.8011056024.

The spelling of 45042437 in words is "forty-five million, forty-two thousand, four hundred thirty-seven".