2258731378 has 16 divisors (see below), whose sum is σ = 3528684864. Its totient is φ = 1083363120.

The previous prime is 2258731357. The next prime is 2258731411. The reversal of 2258731378 is 8731378522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209700 + ... + 220207.

It is an arithmetic number, because the mean of its divisors is an integer number (220542804).

Almost surely, 2^2258731378 is an apocalyptic number.

2258731378 is a deficient number, since it is larger than the sum of its proper divisors (1269953486).

2258731378 is a wasteful number, since it uses less digits than its factorization.

2258731378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430017.

The product of its digits is 564480, while the sum is 46.

The square root of 2258731378 is about 47526.1125908695. The cubic root of 2258731378 is about 1312.0635228669.

The spelling of 2258731378 in words is "two billion, two hundred fifty-eight million, seven hundred thirty-one thousand, three hundred seventy-eight".