16072140 has 96 divisors (see below), whose sum is σ = 54480384. Its totient is φ = 3456000.

The previous prime is 16072139. The next prime is 16072163. The reversal of 16072140 is 4127061.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6015 + ... + 8265.

It is an arithmetic number, because the mean of its divisors is an integer number (567504).

Almost surely, 2^16072140 is an apocalyptic number.

16072140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16072140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27240192).

16072140 is an abundant number, since it is smaller than the sum of its proper divisors (38408244).

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

16072140 is a wasteful number, since it uses less digits than its factorization.

16072140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 16072140 is about 4009.0073584367. The cubic root of 16072140 is about 252.3623534978.

The spelling of 16072140 in words is "sixteen million, seventy-two thousand, one hundred forty".