1057840878 has 32 divisors (see below), whose sum is σ = 2300685984. Its totient is φ = 322900992.

The previous prime is 1057840871. The next prime is 1057840907. The reversal of 1057840878 is 8780487501.

It is a super-2 number, since 2×1057840878² = 2238054646335621768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057840871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136375 + ... + 143922.

It is an arithmetic number, because the mean of its divisors is an integer number (71896437).

Almost surely, 2^1057840878 is an apocalyptic number.

1057840878 is an abundant number, since it is smaller than the sum of its proper divisors (1242845106).

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

1057840878 is a wasteful number, since it uses less digits than its factorization.

1057840878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280356.

The product of its (nonzero) digits is 501760, while the sum is 48.

The square root of 1057840878 is about 32524.4658372739. The cubic root of 1057840878 is about 1018.9200661645.

The spelling of 1057840878 in words is "one billion, fifty-seven million, eight hundred forty thousand, eight hundred seventy-eight".