1055094778 has 16 divisors (see below), whose sum is σ = 1652342976. Its totient is φ = 504338560.

The previous prime is 1055094763. The next prime is 1055094809. The reversal of 1055094778 is 8774905501.

It is a happy number.

It is a super-2 number, since 2×1055094778² = 2226449981125738568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 99513 + ... + 109603.

It is an arithmetic number, because the mean of its divisors is an integer number (103271436).

Almost surely, 2^1055094778 is an apocalyptic number.

1055094778 is a deficient number, since it is larger than the sum of its proper divisors (597248198).

1055094778 is a wasteful number, since it uses less digits than its factorization.

1055094778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12389.

The product of its (nonzero) digits is 352800, while the sum is 46.

The square root of 1055094778 is about 32482.2224916954. Note that the first 3 decimals coincide. The cubic root of 1055094778 is about 1018.0376142593.

The spelling of 1055094778 in words is "one billion, fifty-five million, ninety-four thousand, seven hundred seventy-eight".