40074078 has 32 divisors (see below), whose sum is σ = 92039040. Its totient is φ = 11504160.

The previous prime is 40074077. The next prime is 40074091. The reversal of 40074078 is 87047004.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40074077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14725 + ... + 17232.

It is an arithmetic number, because the mean of its divisors is an integer number (2876220).

Almost surely, 2^40074078 is an apocalyptic number.

40074078 is an abundant number, since it is smaller than the sum of its proper divisors (51964962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40074078 is a wasteful number, since it uses less digits than its factorization.

40074078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31992.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 40074078 is about 6330.4089915265. The cubic root of 40074078 is about 342.2061784721.

The spelling of 40074078 in words is "forty million, seventy-four thousand, seventy-eight".