16312732 has 12 divisors (see below), whose sum is σ = 29531880. Its totient is φ = 7875056.

The previous prime is 16312717. The next prime is 16312739. The reversal of 16312732 is 23721361.

It is a super-2 number, since 2×16312732² = 532210450607648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16312697 and 16312706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16312739) 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, 70198 + ... + 70429.

It is an arithmetic number, because the mean of its divisors is an integer number (2460990).

Almost surely, 2^16312732 is an apocalyptic number.

It is an amenable number.

16312732 is a deficient number, since it is larger than the sum of its proper divisors (13219148).

16312732 is a wasteful number, since it uses less digits than its factorization.

16312732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140660 (or 140658 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 16312732 is about 4038.9023261277. The cubic root of 16312732 is about 253.6153684125.

The spelling of 16312732 in words is "sixteen million, three hundred twelve thousand, seven hundred thirty-two".