4057256994 has 64 divisors (see below), whose sum is σ = 9706936320. Its totient is φ = 1105378560.

The previous prime is 4057256993. The next prime is 4057257019. The reversal of 4057256994 is 4996527504.

It is a super-2 number, since 2×4057256994² = 32922668630723832072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4057256993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313402 + ... + 326090.

It is an arithmetic number, because the mean of its divisors is an integer number (151670880).

Almost surely, 2^4057256994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4057256994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4853468160).

4057256994 is an abundant number, since it is smaller than the sum of its proper divisors (5649679326).

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

4057256994 is a wasteful number, since it uses less digits than its factorization.

4057256994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13055.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The square root of 4057256994 is about 63696.6011181130. The cubic root of 4057256994 is about 1594.9393482635.

The spelling of 4057256994 in words is "four billion, fifty-seven million, two hundred fifty-six thousand, nine hundred ninety-four".