45442037 has 4 divisors (see below), whose sum is σ = 48115116. Its totient is φ = 42768960.

The previous prime is 45442027. The next prime is 45442049. The reversal of 45442037 is 73024454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73024454 = 2 ⋅36512227.

It can be written as a sum of positive squares in 2 ways, for example, as 14182756 + 31259281 = 3766^2 + 5591^2 .

It is a cyclic number.

It is not a de Polignac number, because 45442037 - 2⁶ = 45441973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45442027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1336514 + ... + 1336547.

It is an arithmetic number, because the mean of its divisors is an integer number (12028779).

Almost surely, 2^45442037 is an apocalyptic number.

It is an amenable number.

45442037 is a deficient number, since it is larger than the sum of its proper divisors (2673079).

45442037 is a wasteful number, since it uses less digits than its factorization.

45442037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673078.

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

The square root of 45442037 is about 6741.0709089877. The cubic root of 45442037 is about 356.8501883534.

The spelling of 45442037 in words is "forty-five million, four hundred forty-two thousand, thirty-seven".