45878481 has 60 divisors (see below), whose sum is σ = 78276352. Its totient is φ = 26730000.

The previous prime is 45878473. The next prime is 45878489. The reversal of 45878481 is 18487854.

It is an interprime number because it is at equal distance from previous prime (45878473) and next prime (45878489).

It is not a de Polignac number, because 45878481 - 2³ = 45878473 is a prime.

It is a super-2 number, since 2×45878481² = 4209670037734722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45878489) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 303756 + ... + 303906.

Almost surely, 2^45878481 is an apocalyptic number.

It is an amenable number.

45878481 is a deficient number, since it is larger than the sum of its proper divisors (32397871).

45878481 is a wasteful number, since it uses less digits than its factorization.

45878481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 196 counting only the distinct ones).

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

The square root of 45878481 is about 6773.3655593065. The cubic root of 45878481 is about 357.9889955316.

The spelling of 45878481 in words is "forty-five million, eight hundred seventy-eight thousand, four hundred eighty-one".