2290401378 has 24 divisors (see below), whose sum is σ = 4968872688. Its totient is φ = 762492312.

The previous prime is 2290401367. The next prime is 2290401419. The reversal of 2290401378 is 8731040922.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66676 + ... + 95007.

It is an arithmetic number, because the mean of its divisors is an integer number (207036362).

Almost surely, 2^2290401378 is an apocalyptic number.

2290401378 is an abundant number, since it is smaller than the sum of its proper divisors (2678471310).

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

2290401378 is a wasteful number, since it uses less digits than its factorization.

2290401378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162478 (or 162475 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2290401378 is about 47858.1380540447. The cubic root of 2290401378 is about 1318.1672947801.

The spelling of 2290401378 in words is "two billion, two hundred ninety million, four hundred one thousand, three hundred seventy-eight".