45884781 has 12 divisors (see below), whose sum is σ = 67895100. Its totient is φ = 29843520.

The previous prime is 45884779. The next prime is 45884789. The reversal of 45884781 is 18748854.

It can be written as a sum of positive squares in 2 ways, for example, as 22410756 + 23474025 = 4734^2 + 4845^2 .

It is not a de Polignac number, because 45884781 - 2¹ = 45884779 is a prime.

It is a super-2 number, since 2×45884781² = 4210826254835922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45884789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61806 + ... + 62543.

It is an arithmetic number, because the mean of its divisors is an integer number (5657925).

Almost surely, 2^45884781 is an apocalyptic number.

45884781 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

45884781 is a deficient number, since it is larger than the sum of its proper divisors (22010319).

45884781 is a wasteful number, since it uses less digits than its factorization.

45884781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124396 (or 124393 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 45884781 is about 6773.8306001848. The cubic root of 45884781 is about 358.0053810454.

It can be divided in two parts, 45884 and 781, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 45884781 in words is "forty-five million, eight hundred eighty-four thousand, seven hundred eighty-one".