45421308 has 72 divisors (see below), whose sum is σ = 120010800. Its totient is φ = 14466816.

The previous prime is 45421261. The next prime is 45421319. The reversal of 45421308 is 80312454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144960 + ... + 145272.

Almost surely, 2^45421308 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 45421308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60005400).

45421308 is an abundant number, since it is smaller than the sum of its proper divisors (74589492).

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

45421308 is a wasteful number, since it uses less digits than its factorization.

45421308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 45421308 is about 6739.5332182578. The cubic root of 45421308 is about 356.7959194202.

The spelling of 45421308 in words is "forty-five million, four hundred twenty-one thousand, three hundred eight".