4020478699 has 6 divisors (see below), whose sum is σ = 4270889444. Its totient is φ = 3783979680.

The previous prime is 4020478697. The next prime is 4020478703. The reversal of 4020478699 is 9968740204.

It is not a de Polignac number, because 4020478699 - 2¹ = 4020478697 is a prime.

It is a super-2 number, since 2×4020478699² = 32328497938225465202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020478697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6955557 + ... + 6956134.

Almost surely, 2^4020478699 is an apocalyptic number.

4020478699 is a deficient number, since it is larger than the sum of its proper divisors (250410745).

4020478699 is a wasteful number, since it uses less digits than its factorization.

4020478699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13911725 (or 13911708 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 4020478699 is about 63407.2448463107. The cubic root of 4020478699 is about 1590.1054343807.

The spelling of 4020478699 in words is "four billion, twenty million, four hundred seventy-eight thousand, six hundred ninety-nine".