74402146 has 16 divisors (see below), whose sum is σ = 137358144. Its totient is φ = 29433744.

The previous prime is 74402137. The next prime is 74402147. The reversal of 74402146 is 64120447.

It is not an unprimeable number, because it can be changed into a prime (74402147) 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 7 ways as a sum of consecutive naturals, for example, 204220 + ... + 204583.

It is an arithmetic number, because the mean of its divisors is an integer number (8584884).

Almost surely, 2^74402146 is an apocalyptic number.

74402146 is a deficient number, since it is larger than the sum of its proper divisors (62955998).

74402146 is a wasteful number, since it uses less digits than its factorization.

74402146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408825.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 74402146 is about 8625.6678582009. The cubic root of 74402146 is about 420.5927872860.

The spelling of 74402146 in words is "seventy-four million, four hundred two thousand, one hundred forty-six".