1357422878 has 16 divisors (see below), whose sum is σ = 2428185600. Its totient is φ = 556458936.

The previous prime is 1357422827. The next prime is 1357422893. The reversal of 1357422878 is 8782247531.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107478 + ... + 2108121.

It is an arithmetic number, because the mean of its divisors is an integer number (151761600).

Almost surely, 2^1357422878 is an apocalyptic number.

1357422878 is a deficient number, since it is larger than the sum of its proper divisors (1070762722).

1357422878 is a wasteful number, since it uses less digits than its factorization.

1357422878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215631.

The product of its digits is 752640, while the sum is 47.

The square root of 1357422878 is about 36843.2202447072. The cubic root of 1357422878 is about 1107.2313865318.

The spelling of 1357422878 in words is "one billion, three hundred fifty-seven million, four hundred twenty-two thousand, eight hundred seventy-eight".