16242840 has 48 divisors (see below), whose sum is σ = 52790400. Its totient is φ = 4331328.

The previous prime is 16242839. The next prime is 16242841. The reversal of 16242840 is 4824261.

It is an interprime number because it is at equal distance from previous prime (16242839) and next prime (16242841).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16242841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22200 + ... + 22919.

It is an arithmetic number, because the mean of its divisors is an integer number (1099800).

Almost surely, 2^16242840 is an apocalyptic number.

16242840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16242840 is an abundant number, since it is smaller than the sum of its proper divisors (36547560).

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

16242840 is a wasteful number, since it uses less digits than its factorization.

16242840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45136 (or 45129 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 16242840 is about 4030.2406876017. The cubic root of 16242840 is about 253.2526443549.

The spelling of 16242840 in words is "sixteen million, two hundred forty-two thousand, eight hundred forty".