45409380 has 48 divisors (see below), whose sum is σ = 134628480. Its totient is φ = 11396608.

The previous prime is 45409369. The next prime is 45409387. The reversal of 45409380 is 8390454.

It is not an unprimeable number, because it can be changed into a prime (45409387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21240 + ... + 23279.

It is an arithmetic number, because the mean of its divisors is an integer number (2804760).

Almost surely, 2^45409380 is an apocalyptic number.

It is an amenable number.

45409380 is an abundant number, since it is smaller than the sum of its proper divisors (89219100).

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

45409380 is a wasteful number, since it uses less digits than its factorization.

45409380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44548 (or 44546 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 45409380 is about 6738.6482323979. The cubic root of 45409380 is about 356.7646841952.

The spelling of 45409380 in words is "forty-five million, four hundred nine thousand, three hundred eighty".