45271830 has 16 divisors (see below), whose sum is σ = 108652464. Its totient is φ = 12072480.

The previous prime is 45271829. The next prime is 45271841. The reversal of 45271830 is 3817254.

45271830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1509061 = 45271830 / (4 + 5 + 2 + 7 + 1 + 8 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754501 + ... + 754560.

It is an arithmetic number, because the mean of its divisors is an integer number (6790779).

Almost surely, 2^45271830 is an apocalyptic number.

45271830 is an abundant number, since it is smaller than the sum of its proper divisors (63380634).

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

45271830 is a wasteful number, since it uses less digits than its factorization.

45271830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509071.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 45271830 is about 6728.4344390059. The cubic root of 45271830 is about 356.4040933876.

The spelling of 45271830 in words is "forty-five million, two hundred seventy-one thousand, eight hundred thirty".