16503042 has 16 divisors (see below), whose sum is σ = 33070752. Its totient is φ = 5490240.

The previous prime is 16503041. The next prime is 16503043. The reversal of 16503042 is 24030561.

It is a happy number.

16503042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16503041) and next prime (16503043).

It is not an unprimeable number, because it can be changed into a prime (16503041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018 + ... + 5834.

It is an arithmetic number, because the mean of its divisors is an integer number (2066922).

Almost surely, 2^16503042 is an apocalyptic number.

16503042 is an abundant number, since it is smaller than the sum of its proper divisors (16567710).

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

16503042 is a wasteful number, since it uses less digits than its factorization.

16503042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 16503042 is about 4062.3936293767. The cubic root of 16503042 is about 254.5978127530.

The spelling of 16503042 in words is "sixteen million, five hundred three thousand, forty-two".