74370312 has 40 divisors (see below), whose sum is σ = 208307550. Its totient is φ = 24789888.

The previous prime is 74370281. The next prime is 74370319. The reversal of 74370312 is 21307347.

It can be written as a sum of positive squares in only one way, i.e., 70660836 + 3709476 = 8406^2 + 1926^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (74370319) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 56737 + ... + 58032.

Almost surely, 2^74370312 is an apocalyptic number.

74370312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74370312 is an abundant number, since it is smaller than the sum of its proper divisors (133937238).

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

74370312 is a wasteful number, since it uses less digits than its factorization.

74370312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114787 (or 114774 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 74370312 is about 8623.8223543856. The cubic root of 74370312 is about 420.5327932243.

Adding to 74370312 its reverse (21307347), we get a palindrome (95677659).

The spelling of 74370312 in words is "seventy-four million, three hundred seventy thousand, three hundred twelve".