2090931 has 8 divisors (see below), whose sum is σ = 2934720. Its totient is φ = 1320552.

The previous prime is 2090923. The next prime is 2090951. The reversal of 2090931 is 1390902.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2090931 - 2³ = 2090923 is a prime.

It is a super-2 number, since 2×2090931² = 8743984893522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2090951) 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, 18285 + ... + 18398.

It is an arithmetic number, because the mean of its divisors is an integer number (366840).

2^2090931 is an apocalyptic number.

2090931 is a deficient number, since it is larger than the sum of its proper divisors (843789).

2090931 is a wasteful number, since it uses less digits than its factorization.

2090931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36705.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 2090931 is about 1446.0051867127. The cubic root of 2090931 is about 127.8733080751.

It can be divided in two parts, 20 and 90931, that added together give a triangular number (90951 = T₄₂₆).

The spelling of 2090931 in words is "two million, ninety thousand, nine hundred thirty-one".