72449164 has 12 divisors (see below), whose sum is σ = 127638000. Its totient is φ = 35981168.

The previous prime is 72449101. The next prime is 72449183. The reversal of 72449164 is 46194427.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60184 + ... + 61375.

It is an arithmetic number, because the mean of its divisors is an integer number (10636500).

Almost surely, 2^72449164 is an apocalyptic number.

It is an amenable number.

72449164 is a deficient number, since it is larger than the sum of its proper divisors (55188836).

72449164 is a wasteful number, since it uses less digits than its factorization.

72449164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121712 (or 121710 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 72449164 is about 8511.7074667777. The cubic root of 72449164 is about 416.8800633476.

The spelling of 72449164 in words is "seventy-two million, four hundred forty-nine thousand, one hundred sixty-four".