72068992 has 16 divisors (see below), whose sum is σ = 143575200. Its totient is φ = 36034432.

The previous prime is 72068981. The next prime is 72068993. The reversal of 72068992 is 29986027.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72068993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281392 + ... + 281647.

It is an arithmetic number, because the mean of its divisors is an integer number (8973450).

Almost surely, 2^72068992 is an apocalyptic number.

It is an amenable number.

72068992 is a deficient number, since it is larger than the sum of its proper divisors (71506208).

72068992 is an equidigital number, since it uses as much as digits as its factorization.

72068992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563053 (or 563041 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 72068992 is about 8489.3457934048. The cubic root of 72068992 is about 416.1496010267.

The spelling of 72068992 in words is "seventy-two million, sixty-eight thousand, nine hundred ninety-two".