2391996 has 24 divisors (see below), whose sum is σ = 5688144. Its totient is φ = 782080.

The previous prime is 2391979. The next prime is 2391997. The reversal of 2391996 is 6991932.

It is a happy number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391997) 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, 1245 + ... + 2516.

It is an arithmetic number, because the mean of its divisors is an integer number (237006).

2^2391996 is an apocalyptic number.

It is an amenable number.

2391996 is an abundant number, since it is smaller than the sum of its proper divisors (3296148).

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

2391996 is a wasteful number, since it uses less digits than its factorization.

2391996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821 (or 3819 counting only the distinct ones).

The product of its digits is 26244, while the sum is 39.

The square root of 2391996 is about 1546.6079011825. The cubic root of 2391996 is about 133.7375869925.

The spelling of 2391996 in words is "two million, three hundred ninety-one thousand, nine hundred ninety-six".