16133240 has 16 divisors (see below), whose sum is σ = 36299880. Its totient is φ = 6453280.

The previous prime is 16133239. The next prime is 16133287. The reversal of 16133240 is 4233161.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 201626 + ... + 201705.

Almost surely, 2^16133240 is an apocalyptic number.

16133240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16133240 is an abundant number, since it is smaller than the sum of its proper divisors (20166640).

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

16133240 is a wasteful number, since it uses less digits than its factorization.

16133240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403342 (or 403338 counting only the distinct ones).

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

The square root of 16133240 is about 4016.6204699971. The cubic root of 16133240 is about 252.6817434800.

The spelling of 16133240 in words is "sixteen million, one hundred thirty-three thousand, two hundred forty".