2031988 has 24 divisors (see below), whose sum is σ = 4196864. Its totient is φ = 842400.

The previous prime is 2031983. The next prime is 2032013. The reversal of 2031988 is 8891302.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031983) 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, 303 + ... + 2038.

2^2031988 is an apocalyptic number.

2031988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2031988 is an abundant number, since it is smaller than the sum of its proper divisors (2164876).

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

2031988 is a wasteful number, since it uses less digits than its factorization.

2031988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383 (or 2381 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2031988 is about 1425.4781653887. The cubic root of 2031988 is about 126.6602612951.

The spelling of 2031988 in words is "two million, thirty-one thousand, nine hundred eighty-eight".