2981804431 has 4 divisors (see below), whose sum is σ = 2984391712. Its totient is φ = 2979217152.

The previous prime is 2981804429. The next prime is 2981804443. The reversal of 2981804431 is 1344081892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2981804431 - 2¹ = 2981804429 is a prime.

It is a super-2 number, since 2×2981804431² = 17782315329462467522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981804531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291911 + ... + 1294216.

It is an arithmetic number, because the mean of its divisors is an integer number (746097928).

Almost surely, 2^2981804431 is an apocalyptic number.

2981804431 is a deficient number, since it is larger than the sum of its proper divisors (2587281).

2981804431 is a wasteful number, since it uses less digits than its factorization.

2981804431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587280.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 2981804431 is about 54605.9010638960. The cubic root of 2981804431 is about 1439.3278162606.

The spelling of 2981804431 in words is "two billion, nine hundred eighty-one million, eight hundred four thousand, four hundred thirty-one".