74981270 has 96 divisors (see below), whose sum is σ = 172368000. Its totient is φ = 23272704.

The previous prime is 74981177. The next prime is 74981279. The reversal of 74981270 is 7218947.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74981279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 503156 + ... + 503304.

It is an arithmetic number, because the mean of its divisors is an integer number (1795500).

Almost surely, 2^74981270 is an apocalyptic number.

74981270 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

74981270 is an abundant number, since it is smaller than the sum of its proper divisors (97386730).

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

74981270 is a wasteful number, since it uses less digits than its factorization.

74981270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 74981270 is about 8659.1725932678. The cubic root of 74981270 is about 421.6812241863.

The spelling of 74981270 in words is "seventy-four million, nine hundred eighty-one thousand, two hundred seventy".