2031939 has 32 divisors (see below), whose sum is σ = 3709440. Its totient is φ = 1070496.

The previous prime is 2031937. The next prime is 2031961. The reversal of 2031939 is 9391302.

It is not a de Polignac number, because 2031939 - 2¹ = 2031937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2044 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (115920).

2^2031939 is an apocalyptic number.

2031939 is a deficient number, since it is larger than the sum of its proper divisors (1677501).

2031939 is a wasteful number, since it uses less digits than its factorization.

2031939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 2031939 is about 1425.4609780699. The cubic root of 2031939 is about 126.6592431784.

2031939 divided by its sum of digits (27) gives a palindrome (75257).

The spelling of 2031939 in words is "two million, thirty-one thousand, nine hundred thirty-nine".