16099740 has 36 divisors (see below), whose sum is σ = 48836424. Its totient is φ = 4293216.

The previous prime is 16099729. The next prime is 16099751. The reversal of 16099740 is 4799061.

16099740 is a `hidden beast` number, since 1 + 609 + 9 + 7 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (16099729) and next prime (16099751).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16099695 and 16099704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44542 + ... + 44901.

Almost surely, 2^16099740 is an apocalyptic number.

16099740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16099740 is an abundant number, since it is smaller than the sum of its proper divisors (32736684).

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

16099740 is a wasteful number, since it uses less digits than its factorization.

16099740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89458 (or 89453 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 16099740 is about 4012.4481305059. The cubic root of 16099740 is about 252.5067279193.

The spelling of 16099740 in words is "sixteen million, ninety-nine thousand, seven hundred forty".