16231772 has 12 divisors (see below), whose sum is σ = 28657776. Its totient is φ = 8043840.

The previous prime is 16231771. The next prime is 16231801. The reversal of 16231772 is 27713261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16231771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17504 + ... + 18407.

It is an arithmetic number, because the mean of its divisors is an integer number (2388148).

Almost surely, 2^16231772 is an apocalyptic number.

It is an amenable number.

16231772 is a deficient number, since it is larger than the sum of its proper divisors (12426004).

16231772 is a wasteful number, since it uses less digits than its factorization.

16231772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36028 (or 36026 counting only the distinct ones).

The product of its digits is 3528, while the sum is 29.

The square root of 16231772 is about 4028.8673346240. The cubic root of 16231772 is about 253.1951084976.

The spelling of 16231772 in words is "sixteen million, two hundred thirty-one thousand, seven hundred seventy-two".