45178870 has 16 divisors (see below), whose sum is σ = 88715088. Its totient is φ = 16428640.

The previous prime is 45178799. The next prime is 45178883. The reversal of 45178870 is 7887154.

It is a super-2 number, since 2×45178870² = 4082260588953800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205249 + ... + 205468.

It is an arithmetic number, because the mean of its divisors is an integer number (5544693).

Almost surely, 2^45178870 is an apocalyptic number.

45178870 is a deficient number, since it is larger than the sum of its proper divisors (43536218).

45178870 is a wasteful number, since it uses less digits than its factorization.

45178870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410735.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 45178870 is about 6721.5228929165. The cubic root of 45178870 is about 356.1599825913.

The spelling of 45178870 in words is "forty-five million, one hundred seventy-eight thousand, eight hundred seventy".