45284881 has 4 divisors (see below), whose sum is σ = 45315072. Its totient is φ = 45254692.

The previous prime is 45284867. The next prime is 45284903. The reversal of 45284881 is 18848254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45284881 - 2⁵ = 45284849 is a prime.

It is a super-2 number, since 2×45284881² = 4101440894368322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45284851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12721 + ... + 15886.

It is an arithmetic number, because the mean of its divisors is an integer number (11328768).

Almost surely, 2^45284881 is an apocalyptic number.

It is an amenable number.

45284881 is a deficient number, since it is larger than the sum of its proper divisors (30191).

45284881 is a wasteful number, since it uses less digits than its factorization.

45284881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30190.

The product of its digits is 81920, while the sum is 40.

The square root of 45284881 is about 6729.4042083976. The cubic root of 45284881 is about 356.4383382512.

It can be divided in two parts, 452848 and 81, that added together give a square (452929 = 673²).

The spelling of 45284881 in words is "forty-five million, two hundred eighty-four thousand, eight hundred eighty-one".