72049776 has 20 divisors (see below), whose sum is σ = 186128712. Its totient is φ = 24016576.

The previous prime is 72049753. The next prime is 72049781. The reversal of 72049776 is 67794027.

It is a congruent number.

It is an unprimeable number.

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, 750471 + ... + 750566.

Almost surely, 2^72049776 is an apocalyptic number.

It is an amenable number.

72049776 is an abundant number, since it is smaller than the sum of its proper divisors (114078936).

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

72049776 is a wasteful number, since it uses less digits than its factorization.

72049776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501048 (or 1501042 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 72049776 is about 8488.2139464083. The cubic root of 72049776 is about 416.1126112786.

The spelling of 72049776 in words is "seventy-two million, forty-nine thousand, seven hundred seventy-six".