1138043948 has 24 divisors (see below), whose sum is σ = 2026158624. Its totient is φ = 559193600.

The previous prime is 1138043923. The next prime is 1138043953. The reversal of 1138043948 is 8493408311.

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, 83708 + ... + 96348.

It is an arithmetic number, because the mean of its divisors is an integer number (84423276).

Almost surely, 2^1138043948 is an apocalyptic number.

It is an amenable number.

1138043948 is a deficient number, since it is larger than the sum of its proper divisors (888114676).

1138043948 is a wasteful number, since it uses less digits than its factorization.

1138043948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13033 (or 13031 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1138043948 is about 33734.9069659307. The cubic root of 1138043948 is about 1044.0461058698.

The spelling of 1138043948 in words is "one billion, one hundred thirty-eight million, forty-three thousand, nine hundred forty-eight".