74418890 has 64 divisors (see below), whose sum is σ = 168086016. Its totient is φ = 23092992.

The previous prime is 74418889. The next prime is 74418899. The reversal of 74418890 is 9881447.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (74418899) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47459 + ... + 49001.

It is an arithmetic number, because the mean of its divisors is an integer number (2626344).

Almost surely, 2^74418890 is an apocalyptic number.

74418890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74418890 is an abundant number, since it is smaller than the sum of its proper divisors (93667126).

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

74418890 is a wasteful number, since it uses less digits than its factorization.

74418890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 74418890 is about 8626.6383951108. The cubic root of 74418890 is about 420.6243360060.

The spelling of 74418890 in words is "seventy-four million, four hundred eighteen thousand, eight hundred ninety".