74834990 has 16 divisors (see below), whose sum is σ = 135070848. Its totient is φ = 29852256.

The previous prime is 74834989. The next prime is 74834999. The reversal of 74834990 is 9943847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74834999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6302 + ... + 13761.

It is an arithmetic number, because the mean of its divisors is an integer number (8441928).

Almost surely, 2^74834990 is an apocalyptic number.

74834990 is a deficient number, since it is larger than the sum of its proper divisors (60235858).

74834990 is a wasteful number, since it uses less digits than its factorization.

74834990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20443.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 74834990 is about 8650.7219351913. The cubic root of 74834990 is about 421.4068281692.

The spelling of 74834990 in words is "seventy-four million, eight hundred thirty-four thousand, nine hundred ninety".