16020940 has 48 divisors (see below), whose sum is σ = 37100448. Its totient is φ = 5773824.

The previous prime is 16020931. The next prime is 16020943. The reversal of 16020940 is 4902061.

It is not an unprimeable number, because it can be changed into a prime (16020943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10464 + ... + 11896.

It is an arithmetic number, because the mean of its divisors is an integer number (772926).

Almost surely, 2^16020940 is an apocalyptic number.

16020940 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 16020940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18550224).

16020940 is an abundant number, since it is smaller than the sum of its proper divisors (21079508).

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

16020940 is a wasteful number, since it uses less digits than its factorization.

16020940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 16020940 is about 4002.6166441467. The cubic root of 16020940 is about 252.0940901693.

The spelling of 16020940 in words is "sixteen million, twenty thousand, nine hundred forty".