16961388 has 12 divisors (see below), whose sum is σ = 39576600. Its totient is φ = 5653792.

The previous prime is 16961383. The next prime is 16961389. The reversal of 16961388 is 88316961.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (16961383) 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, 706713 + ... + 706736.

It is an arithmetic number, because the mean of its divisors is an integer number (3298050).

Almost surely, 2^16961388 is an apocalyptic number.

It is an amenable number.

16961388 is an abundant number, since it is smaller than the sum of its proper divisors (22615212).

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

16961388 is a wasteful number, since it uses less digits than its factorization.

16961388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413456 (or 1413454 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 16961388 is about 4118.4205710442. The cubic root of 16961388 is about 256.9333402693.

The spelling of 16961388 in words is "sixteen million, nine hundred sixty-one thousand, three hundred eighty-eight".