72264466 has 4 divisors (see below), whose sum is σ = 108396702. Its totient is φ = 36132232.

The previous prime is 72264463. The next prime is 72264473. The reversal of 72264466 is 66446227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 69472225 + 2792241 = 8335^2 + 1671^2 .

It is not an unprimeable number, because it can be changed into a prime (72264463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18066115 + ... + 18066118.

Almost surely, 2^72264466 is an apocalyptic number.

72264466 is a deficient number, since it is larger than the sum of its proper divisors (36132236).

72264466 is a wasteful number, since it uses less digits than its factorization.

72264466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36132235.

The product of its digits is 96768, while the sum is 37.

The square root of 72264466 is about 8500.8508985866. The cubic root of 72264466 is about 416.5255046791.

The spelling of 72264466 in words is "seventy-two million, two hundred sixty-four thousand, four hundred sixty-six".