2398911538 has 16 divisors (see below), whose sum is σ = 3823161120. Its totient is φ = 1125704736.

The previous prime is 2398911527. The next prime is 2398911547. The reversal of 2398911538 is 8351198932.

It is a junction number, because it is equal to n+sod(n) for n = 2398911491 and 2398911500.

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, 290931 + ... + 299062.

It is an arithmetic number, because the mean of its divisors is an integer number (238947570).

Almost surely, 2^2398911538 is an apocalyptic number.

2398911538 is a deficient number, since it is larger than the sum of its proper divisors (1424249582).

2398911538 is a wasteful number, since it uses less digits than its factorization.

2398911538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590121.

The product of its digits is 466560, while the sum is 49.

The square root of 2398911538 is about 48978.6845270471. The cubic root of 2398911538 is about 1338.6634661339.

It can be divided in two parts, 2398 and 911538, that added together give a square (913936 = 956²).

The spelling of 2398911538 in words is "two billion, three hundred ninety-eight million, nine hundred eleven thousand, five hundred thirty-eight".