2863949394 has 16 divisors (see below), whose sum is σ = 5728766400. Its totient is φ = 954505200.

The previous prime is 2863949381. The next prime is 2863949399. The reversal of 2863949394 is 4939493682.

It is a happy number.

It is a super-2 number, since 2×2863949394² = 16404412262785934472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2863949399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11619 + ... + 76569.

It is an arithmetic number, because the mean of its divisors is an integer number (358047900).

Almost surely, 2^2863949394 is an apocalyptic number.

2863949394 is an abundant number, since it is smaller than the sum of its proper divisors (2864817006).

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

2863949394 is a wasteful number, since it uses less digits than its factorization.

2863949394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72305.

The product of its digits is 10077696, while the sum is 57.

The square root of 2863949394 is about 53515.8798301962. The cubic root of 2863949394 is about 1420.1093273625.

The spelling of 2863949394 in words is "two billion, eight hundred sixty-three million, nine hundred forty-nine thousand, three hundred ninety-four".