6139920 has 40 divisors (see below), whose sum is σ = 19034496. Its totient is φ = 1637248.

The previous prime is 6139901. The next prime is 6139921. The reversal of 6139920 is 299316.

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 (30).

It is not an unprimeable number, because it can be changed into a prime (6139921) 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, 12552 + ... + 13031.

Almost surely, 2^6139920 is an apocalyptic number.

6139920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6139920 is an abundant number, since it is smaller than the sum of its proper divisors (12894576).

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

6139920 is a wasteful number, since it uses less digits than its factorization.

6139920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25599 (or 25593 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 6139920 is about 2477.8861959339. The cubic root of 6139920 is about 183.1137278683.

The spelling of 6139920 in words is "six million, one hundred thirty-nine thousand, nine hundred twenty".