16249090 has 48 divisors (see below), whose sum is σ = 34655544. Its totient is φ = 5448960.

The previous prime is 16249081. The next prime is 16249099. The reversal of 16249090 is 9094261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16249081) and next prime (16249099).

It can be written as a sum of positive squares in 4 ways, for example, as 14235529 + 2013561 = 3773^2 + 1419^2 .

It is not an unprimeable number, because it can be changed into a prime (16249099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15214 + ... + 16246.

Almost surely, 2^16249090 is an apocalyptic number.

16249090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16249090 is an abundant number, since it is smaller than the sum of its proper divisors (18406454).

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

16249090 is a wasteful number, since it uses less digits than its factorization.

16249090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 16249090 is about 4031.0160009606. The cubic root of 16249090 is about 253.2851227896.

The spelling of 16249090 in words is "sixteen million, two hundred forty-nine thousand, ninety".