72377340 has 96 divisors (see below), whose sum is σ = 232727040. Its totient is φ = 16463616.

The previous prime is 72377323. The next prime is 72377363. The reversal of 72377340 is 4377327.

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 31 ways as a sum of consecutive naturals, for example, 163159 + ... + 163601.

It is an arithmetic number, because the mean of its divisors is an integer number (2424240).

Almost surely, 2^72377340 is an apocalyptic number.

72377340 is a gapful number since it is divisible by the number (70) 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 72377340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116363520).

72377340 is an abundant number, since it is smaller than the sum of its proper divisors (160349700).

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

72377340 is a wasteful number, since it uses less digits than its factorization.

72377340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 33.

The square root of 72377340 is about 8507.4872906164. The cubic root of 72377340 is about 416.7422568636.

The spelling of 72377340 in words is "seventy-two million, three hundred seventy-seven thousand, three hundred forty".