45273830 has 32 divisors (see below), whose sum is σ = 93372480. Its totient is φ = 15482880.

The previous prime is 45273803. The next prime is 45273841. The reversal of 45273830 is 3837254.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44366 + ... + 45374.

It is an arithmetic number, because the mean of its divisors is an integer number (2917890).

Almost surely, 2^45273830 is an apocalyptic number.

45273830 is an abundant number, since it is smaller than the sum of its proper divisors (48098650).

45273830 is a wasteful number, since it uses less digits than its factorization.

45273830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 45273830 is about 6728.5830603478. The cubic root of 45273830 is about 356.4093416674.

The spelling of 45273830 in words is "forty-five million, two hundred seventy-three thousand, eight hundred thirty".