16772140 has 48 divisors (see below), whose sum is σ = 43916544. Its totient is φ = 5227200.

The previous prime is 16772131. The next prime is 16772141. The reversal of 16772140 is 4127761.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 16772099 and 16772108.

It is not an unprimeable number, because it can be changed into a prime (16772141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3906 + ... + 6985.

It is an arithmetic number, because the mean of its divisors is an integer number (914928).

Almost surely, 2^16772140 is an apocalyptic number.

16772140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16772140 is an abundant number, since it is smaller than the sum of its proper divisors (27144404).

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

16772140 is a wasteful number, since it uses less digits than its factorization.

16772140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10918 (or 10916 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 16772140 is about 4095.3803242190. The cubic root of 16772140 is about 255.9741795247.

It can be divided in two parts, 167721 and 40, that added together give a palindrome (167761).

The spelling of 16772140 in words is "sixteen million, seven hundred seventy-two thousand, one hundred forty".