72102768 has 20 divisors (see below), whose sum is σ = 186265608. Its totient is φ = 24034240.

The previous prime is 72102761. The next prime is 72102791. The reversal of 72102768 is 86720127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72102761) 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 3 ways as a sum of consecutive naturals, for example, 751023 + ... + 751118.

Almost surely, 2^72102768 is an apocalyptic number.

It is an amenable number.

72102768 is an abundant number, since it is smaller than the sum of its proper divisors (114162840).

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

72102768 is a wasteful number, since it uses less digits than its factorization.

72102768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502152 (or 1502146 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 72102768 is about 8491.3348773912. The cubic root of 72102768 is about 416.2146020453.

The spelling of 72102768 in words is "seventy-two million, one hundred two thousand, seven hundred sixty-eight".