16149436 has 6 divisors (see below), whose sum is σ = 28261520. Its totient is φ = 8074716.

The previous prime is 16149431. The next prime is 16149451. The reversal of 16149436 is 63494161.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16149431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2018676 + ... + 2018683.

Almost surely, 2^16149436 is an apocalyptic number.

It is an amenable number.

16149436 is a deficient number, since it is larger than the sum of its proper divisors (12112084).

16149436 is a wasteful number, since it uses less digits than its factorization.

16149436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037363 (or 4037361 counting only the distinct ones).

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

The square root of 16149436 is about 4018.6360870325. The cubic root of 16149436 is about 252.7662701019.

The spelling of 16149436 in words is "sixteen million, one hundred forty-nine thousand, four hundred thirty-six".