2981472381 has 40 divisors (see below), whose sum is σ = 4797349920. Its totient is φ = 1839202848.

The previous prime is 2981472379. The next prime is 2981472391. The reversal of 2981472381 is 1832741892.

It is a happy number.

2981472381 is a `hidden beast` number, since 29 + 81 + 472 + 3 + 81 = 666.

It is not a de Polignac number, because 2981472381 - 2¹ = 2981472379 is a prime.

It is a super-2 number, since 2×2981472381² = 17778355117331618322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981472301) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43651 + ... + 88703.

It is an arithmetic number, because the mean of its divisors is an integer number (119933748).

Almost surely, 2^2981472381 is an apocalyptic number.

It is an amenable number.

2981472381 is a deficient number, since it is larger than the sum of its proper divisors (1815877539).

2981472381 is a wasteful number, since it uses less digits than its factorization.

2981472381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45127 (or 45118 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 2981472381 is about 54602.8605569342. The cubic root of 2981472381 is about 1439.2743870307.

The spelling of 2981472381 in words is "two billion, nine hundred eighty-one million, four hundred seventy-two thousand, three hundred eighty-one".