2238554878 has 32 divisors (see below), whose sum is σ = 3886444800. Its totient is φ = 947183424.

The previous prime is 2238554873. The next prime is 2238554887. The reversal of 2238554878 is 8784558322.

It is a super-2 number, since 2×2238554878² = 10022255883635189768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238554873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1568001 + ... + 1569427.

It is an arithmetic number, because the mean of its divisors is an integer number (121451400).

Almost surely, 2^2238554878 is an apocalyptic number.

2238554878 is a deficient number, since it is larger than the sum of its proper divisors (1647889922).

2238554878 is a wasteful number, since it uses less digits than its factorization.

2238554878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784.

The product of its digits is 4300800, while the sum is 52.

The square root of 2238554878 is about 47313.3689140818. The cubic root of 2238554878 is about 1308.1450891466.

The spelling of 2238554878 in words is "two billion, two hundred thirty-eight million, five hundred fifty-four thousand, eight hundred seventy-eight".