45142884 has 18 divisors (see below), whose sum is σ = 114111270. Its totient is φ = 15047616.

The previous prime is 45142883. The next prime is 45142901. The reversal of 45142884 is 48824154.

It can be written as a sum of positive squares in only one way, i.e., 42614784 + 2528100 = 6528^2 + 1590^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1253969 = 45142884 / (4 + 5 + 1 + 4 + 2 + 8 + 8 + 4).

It is not an unprimeable number, because it can be changed into a prime (45142883) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626949 + ... + 627020.

It is an arithmetic number, because the mean of its divisors is an integer number (6339515).

Almost surely, 2^45142884 is an apocalyptic number.

It is an amenable number.

45142884 is an abundant number, since it is smaller than the sum of its proper divisors (68968386).

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

45142884 is a wasteful number, since it uses less digits than its factorization.

45142884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253979 (or 1253974 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 45142884 is about 6718.8454365315. The cubic root of 45142884 is about 356.0653942908.

The spelling of 45142884 in words is "forty-five million, one hundred forty-two thousand, eight hundred eighty-four".