16306040 has 16 divisors (see below), whose sum is σ = 36688680. Its totient is φ = 6522400.

The previous prime is 16306027. The next prime is 16306049. The reversal of 16306040 is 4060361.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16306049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203786 + ... + 203865.

Almost surely, 2^16306040 is an apocalyptic number.

16306040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16306040 is an abundant number, since it is smaller than the sum of its proper divisors (20382640).

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

16306040 is a wasteful number, since it uses less digits than its factorization.

16306040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407662 (or 407658 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 16306040 is about 4038.0737982360. The cubic root of 16306040 is about 253.5806833134.

The spelling of 16306040 in words is "sixteen million, three hundred six thousand, forty".