4057740978 has 16 divisors (see below), whose sum is σ = 8117753376. Its totient is φ = 1352201760.

The previous prime is 4057740961. The next prime is 4057741019. The reversal of 4057740978 is 8790477504.

It is a self number, because there is not a number n which added to its sum of digits gives 4057740978.

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, 70963 + ... + 114678.

It is an arithmetic number, because the mean of its divisors is an integer number (507359586).

Almost surely, 2^4057740978 is an apocalyptic number.

4057740978 is an abundant number, since it is smaller than the sum of its proper divisors (4060012398).

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

4057740978 is a wasteful number, since it uses less digits than its factorization.

4057740978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189289.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The square root of 4057740978 is about 63700.4001400305. The cubic root of 4057740978 is about 1595.0027650362.

The spelling of 4057740978 in words is "four billion, fifty-seven million, seven hundred forty thousand, nine hundred seventy-eight".