16139464 has 24 divisors (see below), whose sum is σ = 33264630. Its totient is φ = 7335680.

The previous prime is 16139449. The next prime is 16139479. The reversal of 16139464 is 46493161.

It is an interprime number because it is at equal distance from previous prime (16139449) and next prime (16139479).

It can be written as a sum of positive squares in only one way, i.e., 10176100 + 5963364 = 3190^2 + 2442^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7369 + ... + 9304.

Almost surely, 2^16139464 is an apocalyptic number.

It is an amenable number.

16139464 is an abundant number, since it is smaller than the sum of its proper divisors (17125166).

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

16139464 is a wasteful number, since it uses less digits than its factorization.

16139464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16701 (or 16686 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 16139464 is about 4017.3951759816. The cubic root of 16139464 is about 252.7142331096.

The spelling of 16139464 in words is "sixteen million, one hundred thirty-nine thousand, four hundred sixty-four".