1138017478 has 16 divisors (see below), whose sum is σ = 1901728080. Its totient is φ = 507126816.

The previous prime is 1138017469. The next prime is 1138017479. The reversal of 1138017478 is 8747108311.

It is a self number, because there is not a number n which added to its sum of digits gives 1138017478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138017479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753900 + ... + 755407.

It is an arithmetic number, because the mean of its divisors is an integer number (118858005).

Almost surely, 2^1138017478 is an apocalyptic number.

1138017478 is a deficient number, since it is larger than the sum of its proper divisors (763710602).

1138017478 is a wasteful number, since it uses less digits than its factorization.

1138017478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509351.

The product of its (nonzero) digits is 37632, while the sum is 40.

The square root of 1138017478 is about 33734.5146400537. The cubic root of 1138017478 is about 1044.0380112455.

The spelling of 1138017478 in words is "one billion, one hundred thirty-eight million, seventeen thousand, four hundred seventy-eight".