74942970 has 64 divisors (see below), whose sum is σ = 198754560. Its totient is φ = 17988608.

The previous prime is 74942963. The next prime is 74942971. The reversal of 74942970 is 7924947.

It is not an unprimeable number, because it can be changed into a prime (74942971) 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, 8536 + ... + 14924.

It is an arithmetic number, because the mean of its divisors is an integer number (3105540).

Almost surely, 2^74942970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74942970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99377280).

74942970 is an abundant number, since it is smaller than the sum of its proper divisors (123811590).

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

74942970 is a wasteful number, since it uses less digits than its factorization.

74942970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6439.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 74942970 is about 8656.9607830924. The cubic root of 74942970 is about 421.6094145130.

The spelling of 74942970 in words is "seventy-four million, nine hundred forty-two thousand, nine hundred seventy".