45203940 has 96 divisors (see below), whose sum is σ = 142248960. Its totient is φ = 11916288.

The previous prime is 45203933. The next prime is 45203957. The reversal of 45203940 is 4930254.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51949 + ... + 52811.

It is an arithmetic number, because the mean of its divisors is an integer number (1481760).

Almost surely, 2^45203940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45203940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71124480).

45203940 is an abundant number, since it is smaller than the sum of its proper divisors (97045020).

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

45203940 is a wasteful number, since it uses less digits than its factorization.

45203940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 45203940 is about 6723.3875390312. The cubic root of 45203940 is about 356.2258487783.

The spelling of 45203940 in words is "forty-five million, two hundred three thousand, nine hundred forty".