372221667 has 12 divisors (see below), whose sum is σ = 538292040. Its totient is φ = 247853088.

The previous prime is 372221621. The next prime is 372221669. The reversal of 372221667 is 766122273.

It is a happy number.

372221667 is a `hidden beast` number, since 372 + 221 + 6 + 67 = 666.

It is not a de Polignac number, because 372221667 - 2¹¹ = 372219619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (372221669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16417 + ... + 31842.

It is an arithmetic number, because the mean of its divisors is an integer number (44857670).

Almost surely, 2^372221667 is an apocalyptic number.

372221667 is a deficient number, since it is larger than the sum of its proper divisors (166070373).

372221667 is a wasteful number, since it uses less digits than its factorization.

372221667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49122 (or 49119 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 372221667 is about 19293.0471154766. The cubic root of 372221667 is about 719.3394578484.

The spelling of 372221667 in words is "three hundred seventy-two million, two hundred twenty-one thousand, six hundred sixty-seven".