73747152 has 40 divisors (see below), whose sum is σ = 211682880. Its totient is φ = 24582240.

The previous prime is 73747129. The next prime is 73747153. The reversal of 73747152 is 25174737.

It is a super-2 number, since 2×73747152² = 10877284856222208, 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 not an unprimeable number, because it can be changed into a prime (73747153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84924 + ... + 85787.

It is an arithmetic number, because the mean of its divisors is an integer number (5292072).

Almost surely, 2^73747152 is an apocalyptic number.

73747152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

73747152 is an abundant number, since it is smaller than the sum of its proper divisors (137935728).

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

73747152 is a wasteful number, since it uses less digits than its factorization.

73747152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170728 (or 170716 counting only the distinct ones).

The product of its digits is 41160, while the sum is 36.

The square root of 73747152 is about 8587.6162000872. The cubic root of 73747152 is about 419.3549281181.

The spelling of 73747152 in words is "seventy-three million, seven hundred forty-seven thousand, one hundred fifty-two".