72980090 has 16 divisors (see below), whose sum is σ = 132101280. Its totient is φ = 29028240.

The previous prime is 72980087. The next prime is 72980101. The reversal of 72980090 is 9008927.

It is a self number, because there is not a number n which added to its sum of digits gives 72980090.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18596 + ... + 22175.

It is an arithmetic number, because the mean of its divisors is an integer number (8256330).

Almost surely, 2^72980090 is an apocalyptic number.

72980090 is a deficient number, since it is larger than the sum of its proper divisors (59121190).

72980090 is a wasteful number, since it uses less digits than its factorization.

72980090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40957.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 72980090 is about 8542.8385212411. The cubic root of 72980090 is about 417.8959204557.

The spelling of 72980090 in words is "seventy-two million, nine hundred eighty thousand, ninety".