74378055 has 32 divisors (see below), whose sum is σ = 121881600. Its totient is φ = 38719872.

The previous prime is 74378047. The next prime is 74378071. The reversal of 74378055 is 55087347.

It is not a de Polignac number, because 74378055 - 2³ = 74378047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202482 + ... + 202848.

It is an arithmetic number, because the mean of its divisors is an integer number (3808800).

Almost surely, 2^74378055 is an apocalyptic number.

74378055 is a deficient number, since it is larger than the sum of its proper divisors (47503545).

74378055 is a wasteful number, since it uses less digits than its factorization.

74378055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663.

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 74378055 is about 8624.2712735628. The cubic root of 74378055 is about 420.5473871858.

The spelling of 74378055 in words is "seventy-four million, three hundred seventy-eight thousand, fifty-five".