72620340 has 48 divisors (see below), whose sum is σ = 218980608. Its totient is φ = 17875584.

The previous prime is 72620329. The next prime is 72620363. The reversal of 72620340 is 4302627.

It is a self number, because there is not a number n which added to its sum of digits gives 72620340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45772 + ... + 47331.

It is an arithmetic number, because the mean of its divisors is an integer number (4562096).

Almost surely, 2^72620340 is an apocalyptic number.

It is an amenable number.

72620340 is an abundant number, since it is smaller than the sum of its proper divisors (146360268).

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

72620340 is a wasteful number, since it uses less digits than its factorization.

72620340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93128 (or 93126 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 72620340 is about 8521.7568611173. The cubic root of 72620340 is about 417.2081266436.

Adding to 72620340 its reverse (4302627), we get a palindrome (76922967).

The spelling of 72620340 in words is "seventy-two million, six hundred twenty thousand, three hundred forty".