45443740 has 12 divisors (see below), whose sum is σ = 95431896. Its totient is φ = 18177488.

The previous prime is 45443731. The next prime is 45443743. The reversal of 45443740 is 4734454.

It is a super-4 number, since 4×45443740⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45443743) 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, 1136074 + ... + 1136113.

It is an arithmetic number, because the mean of its divisors is an integer number (7952658).

Almost surely, 2^45443740 is an apocalyptic number.

It is an amenable number.

45443740 is an abundant number, since it is smaller than the sum of its proper divisors (49988156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45443740 is a wasteful number, since it uses less digits than its factorization.

45443740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272196 (or 2272194 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 45443740 is about 6741.1972230458. The cubic root of 45443740 is about 356.8546461075.

The spelling of 45443740 in words is "forty-five million, four hundred forty-three thousand, seven hundred forty".