45040408 has 48 divisors (see below), whose sum is σ = 99419400. Its totient is φ = 19071360.

The previous prime is 45040403. The next prime is 45040409. The reversal of 45040408 is 80404054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45040403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34243 + ... + 35533.

Almost surely, 2^45040408 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 45040408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49709700).

45040408 is an abundant number, since it is smaller than the sum of its proper divisors (54378992).

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

45040408 is a wasteful number, since it uses less digits than its factorization.

45040408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1389 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 45040408 is about 6711.2150911739. The cubic root of 45040408 is about 355.7957630016.

The spelling of 45040408 in words is "forty-five million, forty thousand, four hundred eight".