45129380 has 12 divisors (see below), whose sum is σ = 94771740. Its totient is φ = 18051744.

The previous prime is 45129377. The next prime is 45129421. The reversal of 45129380 is 8392154.

It can be written as a sum of positive squares in 2 ways, for example, as 26604964 + 18524416 = 5158^2 + 4304^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128215 + ... + 1128254.

It is an arithmetic number, because the mean of its divisors is an integer number (7897645).

Almost surely, 2^45129380 is an apocalyptic number.

It is an amenable number.

45129380 is an abundant number, since it is smaller than the sum of its proper divisors (49642360).

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

45129380 is a wasteful number, since it uses less digits than its factorization.

45129380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256478 (or 2256476 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 45129380 is about 6717.8404268038. The cubic root of 45129380 is about 356.0298863939.

The spelling of 45129380 in words is "forty-five million, one hundred twenty-nine thousand, three hundred eighty".