1123690378 has 24 divisors (see below), whose sum is σ = 1801652832. Its totient is φ = 525507264.

The previous prime is 1123690367. The next prime is 1123690397. The reversal of 1123690378 is 8730963211.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1123690378.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88251 + ... + 100177.

It is an arithmetic number, because the mean of its divisors is an integer number (75068868).

Almost surely, 2^1123690378 is an apocalyptic number.

1123690378 is a deficient number, since it is larger than the sum of its proper divisors (677962454).

1123690378 is a wasteful number, since it uses less digits than its factorization.

1123690378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12126 (or 12109 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1123690378 is about 33521.4912854425. The cubic root of 1123690378 is about 1039.6381809661.

The spelling of 1123690378 in words is "one billion, one hundred twenty-three million, six hundred ninety thousand, three hundred seventy-eight".