16023940 has 12 divisors (see below), whose sum is σ = 33650316. Its totient is φ = 6409568.

The previous prime is 16023937. The next prime is 16023947. The reversal of 16023940 is 4932061.

It can be written as a sum of positive squares in 2 ways, for example, as 2304324 + 13719616 = 1518^2 + 3704^2 .

It is not an unprimeable number, because it can be changed into a prime (16023947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400579 + ... + 400618.

It is an arithmetic number, because the mean of its divisors is an integer number (2804193).

Almost surely, 2^16023940 is an apocalyptic number.

16023940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16023940 is an abundant number, since it is smaller than the sum of its proper divisors (17626376).

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

16023940 is a wasteful number, since it uses less digits than its factorization.

16023940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801206 (or 801204 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 16023940 is about 4002.9913814546. The cubic root of 16023940 is about 252.1098244743.

The spelling of 16023940 in words is "sixteen million, twenty-three thousand, nine hundred forty".