16280490 has 16 divisors (see below), whose sum is σ = 39073248. Its totient is φ = 4341456.

The previous prime is 16280483. The next prime is 16280497. The reversal of 16280490 is 9408261.

It is an interprime number because it is at equal distance from previous prime (16280483) and next prime (16280497).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 542683 = 16280490 / (1 + 6 + 2 + 8 + 0 + 4 + 9 + 0).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16280497) 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, 271312 + ... + 271371.

It is an arithmetic number, because the mean of its divisors is an integer number (2442078).

Almost surely, 2^16280490 is an apocalyptic number.

16280490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16280490 is an abundant number, since it is smaller than the sum of its proper divisors (22792758).

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

16280490 is a wasteful number, since it uses less digits than its factorization.

16280490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542693.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16280490 is about 4034.9089209052. The cubic root of 16280490 is about 253.4481685440.

The spelling of 16280490 in words is "sixteen million, two hundred eighty thousand, four hundred ninety".