1093940378 has 16 divisors (see below), whose sum is σ = 1797347880. Its totient is φ = 497043456.

The previous prime is 1093940357. The next prime is 1093940399. The reversal of 1093940378 is 8730493901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1093940357) and next prime (1093940399).

It can be written as a sum of positive squares in 4 ways, for example, as 955242649 + 138697729 = 30907^2 + 11777^2 .

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, 553751 + ... + 555722.

Almost surely, 2^1093940378 is an apocalyptic number.

1093940378 is a deficient number, since it is larger than the sum of its proper divisors (703407502).

1093940378 is a wasteful number, since it uses less digits than its factorization.

1093940378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109521.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1093940378 is about 33074.7695078892. The cubic root of 1093940378 is about 1030.3811006881.

The spelling of 1093940378 in words is "one billion, ninety-three million, nine hundred forty thousand, three hundred seventy-eight".