1105943478 has 16 divisors (see below), whose sum is σ = 2288159280. Its totient is φ = 355935776.

The previous prime is 1105943453. The next prime is 1105943497. The reversal of 1105943478 is 8743495011.

It is a happy number.

It is a super-2 number, since 2×1105943478² = 2446221953061472968, which contains 22 as substring.

It is a congruent number.

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, 3177825 + ... + 3178172.

It is an arithmetic number, because the mean of its divisors is an integer number (143009955).

Almost surely, 2^1105943478 is an apocalyptic number.

1105943478 is an abundant number, since it is smaller than the sum of its proper divisors (1182215802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105943478 is a wasteful number, since it uses less digits than its factorization.

1105943478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356031.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 1105943478 is about 33255.7284990120. The cubic root of 1105943478 is about 1034.1359691348.

The spelling of 1105943478 in words is "one billion, one hundred five million, nine hundred forty-three thousand, four hundred seventy-eight".