6021990 has 48 divisors (see below), whose sum is σ = 16864848. Its totient is φ = 1482048.

The previous prime is 6021949. The next prime is 6021991. The reversal of 6021990 is 991206.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6021991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1404 + ... + 3743.

It is an arithmetic number, because the mean of its divisors is an integer number (351351).

Almost surely, 2^6021990 is an apocalyptic number.

6021990 is an abundant number, since it is smaller than the sum of its proper divisors (10842858).

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

6021990 is a wasteful number, since it uses less digits than its factorization.

6021990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173 (or 5170 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 6021990 is about 2453.9743274941. The cubic root of 6021990 is about 181.9337802001.

The spelling of 6021990 in words is "six million, twenty-one thousand, nine hundred ninety".