74307090 has 64 divisors (see below), whose sum is σ = 209526912. Its totient is φ = 16627200.

The previous prime is 74307083. The next prime is 74307091. The reversal of 74307090 is 9070347.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (74307091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4371 + ... + 12950.

It is an arithmetic number, because the mean of its divisors is an integer number (3273858).

Almost surely, 2^74307090 is an apocalyptic number.

74307090 is an abundant number, since it is smaller than the sum of its proper divisors (135219822).

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

74307090 is a wasteful number, since it uses less digits than its factorization.

74307090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17355.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 74307090 is about 8620.1560310704. The cubic root of 74307090 is about 420.4135948465.

The spelling of 74307090 in words is "seventy-four million, three hundred seven thousand, ninety".