4249830981 has 16 divisors (see below), whose sum is σ = 6217312320. Its totient is φ = 2560763520.

The previous prime is 4249830979. The next prime is 4249831043. The reversal of 4249830981 is 1890389424.

It is not a de Polignac number, because 4249830981 - 2¹ = 4249830979 is a prime.

It is a super-2 number, since 2×4249830981² = 36122126734134844722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4249830981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4249830941) 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, 366496 + ... + 377913.

It is an arithmetic number, because the mean of its divisors is an integer number (388582020).

Almost surely, 2^4249830981 is an apocalyptic number.

It is an amenable number.

4249830981 is a deficient number, since it is larger than the sum of its proper divisors (1967481339).

4249830981 is a wasteful number, since it uses less digits than its factorization.

4249830981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744596.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 4249830981 is about 65190.7277225834. The cubic root of 4249830981 is about 1619.7844275718.

The spelling of 4249830981 in words is "four billion, two hundred forty-nine million, eight hundred thirty thousand, nine hundred eighty-one".