72001292 has 18 divisors (see below), whose sum is σ = 138499284. Its totient is φ = 32727640.

The previous prime is 72001291. The next prime is 72001301. The reversal of 72001292 is 29210027.

It is not an unprimeable number, because it can be changed into a prime (72001291) 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 5 ways as a sum of consecutive naturals, for example, 73898 + ... + 74865.

Almost surely, 2^72001292 is an apocalyptic number.

It is an amenable number.

72001292 is a deficient number, since it is larger than the sum of its proper divisors (66497992).

72001292 is a wasteful number, since it uses less digits than its factorization.

72001292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148789 (or 148776 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 72001292 is about 8485.3575057271. The cubic root of 72001292 is about 416.0192529921.

The spelling of 72001292 in words is "seventy-two million, one thousand, two hundred ninety-two".