16020240 has 40 divisors (see below), whose sum is σ = 49663488. Its totient is φ = 4272000.

The previous prime is 16020233. The next prime is 16020241. The reversal of 16020240 is 4202061.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (16020241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33136 + ... + 33615.

Almost surely, 2^16020240 is an apocalyptic number.

16020240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16020240 is an abundant number, since it is smaller than the sum of its proper divisors (33643248).

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

16020240 is a wasteful number, since it uses less digits than its factorization.

16020240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66767 (or 66761 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 16020240 is about 4002.5292003932. The cubic root of 16020240 is about 252.0904185488.

The spelling of 16020240 in words is "sixteen million, twenty thousand, two hundred forty".