45801940 has 12 divisors (see below), whose sum is σ = 96184116. Its totient is φ = 18320768.

The previous prime is 45801929. The next prime is 45801941. The reversal of 45801940 is 4910854.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19114384 + 26687556 = 4372^2 + 5166^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45801941) 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, 1145029 + ... + 1145068.

It is an arithmetic number, because the mean of its divisors is an integer number (8015343).

Almost surely, 2^45801940 is an apocalyptic number.

It is an amenable number.

45801940 is an abundant number, since it is smaller than the sum of its proper divisors (50382176).

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

45801940 is a wasteful number, since it uses less digits than its factorization.

45801940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290106 (or 2290104 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 45801940 is about 6767.7130553829. The cubic root of 45801940 is about 357.7898020155.

The spelling of 45801940 in words is "forty-five million, eight hundred one thousand, nine hundred forty".