16740972 has 24 divisors (see below), whose sum is σ = 43402800. Its totient is φ = 5580288.

The previous prime is 16740967. The next prime is 16740979. The reversal of 16740972 is 27904761.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16740979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77397 + ... + 77612.

It is an arithmetic number, because the mean of its divisors is an integer number (1808450).

Almost surely, 2^16740972 is an apocalyptic number.

16740972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16740972 is an abundant number, since it is smaller than the sum of its proper divisors (26661828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16740972 is a wasteful number, since it uses less digits than its factorization.

16740972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155022 (or 155014 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 16740972 is about 4091.5732915347. The cubic root of 16740972 is about 255.8155205749.

The spelling of 16740972 in words is "sixteen million, seven hundred forty thousand, nine hundred seventy-two".