16153940 has 48 divisors (see below), whose sum is σ = 37425024. Its totient is φ = 5808000.

The previous prime is 16153937. The next prime is 16153967. The reversal of 16153940 is 4935161.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21857 + ... + 22583.

It is an arithmetic number, because the mean of its divisors is an integer number (779688).

Almost surely, 2^16153940 is an apocalyptic number.

16153940 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 16153940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18712512).

16153940 is an abundant number, since it is smaller than the sum of its proper divisors (21271084).

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

16153940 is a wasteful number, since it uses less digits than its factorization.

16153940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 16153940 is about 4019.1964371003. The cubic root of 16153940 is about 252.7897663499.

It can be divided in two parts, 1615 and 3940, that added together give a palindrome (5555).

The spelling of 16153940 in words is "sixteen million, one hundred fifty-three thousand, nine hundred forty".