16149720 has 32 divisors (see below), whose sum is σ = 48449520. Its totient is φ = 4306560.

The previous prime is 16149719. The next prime is 16149737. The reversal of 16149720 is 2794161.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 67171 + ... + 67410.

Almost surely, 2^16149720 is an apocalyptic number.

16149720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16149720 is an abundant number, since it is smaller than the sum of its proper divisors (32299800).

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

16149720 is a wasteful number, since it uses less digits than its factorization.

16149720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134595 (or 134591 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 16149720 is about 4018.6714222489. The cubic root of 16149720 is about 252.7677517883.

The spelling of 16149720 in words is "sixteen million, one hundred forty-nine thousand, seven hundred twenty".