16031442 has 32 divisors (see below), whose sum is σ = 38800512. Its totient is φ = 4310784.

The previous prime is 16031441. The next prime is 16031447. The reversal of 16031442 is 24413061.

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

It is not an unprimeable number, because it can be changed into a prime (16031441) 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, 10513 + ... + 11940.

It is an arithmetic number, because the mean of its divisors is an integer number (1212516).

Almost surely, 2^16031442 is an apocalyptic number.

16031442 is an abundant number, since it is smaller than the sum of its proper divisors (22769070).

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

16031442 is a wasteful number, since it uses less digits than its factorization.

16031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22482.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 16031442 is about 4003.9283210367. The cubic root of 16031442 is about 252.1491621325.

The spelling of 16031442 in words is "sixteen million, thirty-one thousand, four hundred forty-two".