16788740 has 12 divisors (see below), whose sum is σ = 35256396. Its totient is φ = 6715488.

The previous prime is 16788727. The next prime is 16788769. The reversal of 16788740 is 4788761.

It can be written as a sum of positive squares in 2 ways, for example, as 2027776 + 14760964 = 1424^2 + 3842^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419699 + ... + 419738.

It is an arithmetic number, because the mean of its divisors is an integer number (2938033).

Almost surely, 2^16788740 is an apocalyptic number.

16788740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16788740 is an abundant number, since it is smaller than the sum of its proper divisors (18467656).

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

16788740 is a wasteful number, since it uses less digits than its factorization.

16788740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839446 (or 839444 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 16788740 is about 4097.4064967977. The cubic root of 16788740 is about 256.0586006798.

The spelling of 16788740 in words is "sixteen million, seven hundred eighty-eight thousand, seven hundred forty".