2591940 has 48 divisors (see below), whose sum is σ = 7818048. Its totient is φ = 637824.

The previous prime is 2591921. The next prime is 2591969. The reversal of 2591940 is 491952.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2591898 and 2591907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882 + ... + 2441.

It is an arithmetic number, because the mean of its divisors is an integer number (162876).

2^2591940 is an apocalyptic number.

2591940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2591940 is an abundant number, since it is smaller than the sum of its proper divisors (5226108).

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

2591940 is a wasteful number, since it uses less digits than its factorization.

2591940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348 (or 3346 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 2591940 is about 1609.9503097922. The cubic root of 2591940 is about 137.3646491776.

The spelling of 2591940 in words is "two million, five hundred ninety-one thousand, nine hundred forty".