4431377949 has 16 divisors (see below), whose sum is σ = 6055304640. Its totient is φ = 2880915840.

The previous prime is 4431377921. The next prime is 4431377989. The reversal of 4431377949 is 9497731344.

It is not a de Polignac number, because 4431377949 - 2⁸ = 4431377693 is a prime.

It is a super-2 number, since 2×4431377949² = 39274221053766893202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431377989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326307 + ... + 339615.

It is an arithmetic number, because the mean of its divisors is an integer number (378456540).

Almost surely, 2^4431377949 is an apocalyptic number.

It is an amenable number.

4431377949 is a deficient number, since it is larger than the sum of its proper divisors (1623926691).

4431377949 is a wasteful number, since it uses less digits than its factorization.

4431377949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16060.

The product of its digits is 2286144, while the sum is 51.

The square root of 4431377949 is about 66568.5958166462. The cubic root of 4431377949 is about 1642.5285638692.

The spelling of 4431377949 in words is "four billion, four hundred thirty-one million, three hundred seventy-seven thousand, nine hundred forty-nine".