16949740 has 24 divisors (see below), whose sum is σ = 36424080. Its totient is φ = 6621888.

The previous prime is 16949711. The next prime is 16949773. The reversal of 16949740 is 4794961.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16949693 and 16949702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8995 + ... + 10714.

It is an arithmetic number, because the mean of its divisors is an integer number (1517670).

Almost surely, 2^16949740 is an apocalyptic number.

16949740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16949740 is an abundant number, since it is smaller than the sum of its proper divisors (19474340).

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

16949740 is a wasteful number, since it uses less digits than its factorization.

16949740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19761 (or 19759 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 16949740 is about 4117.0061938258. The cubic root of 16949740 is about 256.8745116544.

It can be divided in two parts, 16949 and 740, that added together give a square (17689 = 133²).

The spelling of 16949740 in words is "sixteen million, nine hundred forty-nine thousand, seven hundred forty".