74653272 has 64 divisors (see below), whose sum is σ = 212997600. Its totient is φ = 24209280.

The previous prime is 74653259. The next prime is 74653283. The reversal of 74653272 is 27235647.

It is a happy number.

It is a super-2 number, since 2×74653272² = 11146222040611968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3322 + ... + 12662.

Almost surely, 2^74653272 is an apocalyptic number.

74653272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74653272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106498800).

74653272 is an abundant number, since it is smaller than the sum of its proper divisors (138344328).

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

74653272 is a wasteful number, since it uses less digits than its factorization.

74653272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393 (or 9383 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 74653272 is about 8640.2124973869. The cubic root of 74653272 is about 421.0654581202.

74653272 divided by its sum of digits (36) gives a palindrome (2073702).

The spelling of 74653272 in words is "seventy-four million, six hundred fifty-three thousand, two hundred seventy-two".