2939993451 has 24 divisors (see below), whose sum is σ = 4273246224. Its totient is φ = 1947758400.

The previous prime is 2939993449. The next prime is 2939993473. The reversal of 2939993451 is 1543999392.

2939993451 is a `hidden beast` number, since 293 + 9 + 9 + 9 + 345 + 1 = 666.

It is not a de Polignac number, because 2939993451 - 2¹ = 2939993449 is a prime.

It is a super-2 number, since 2×2939993451² = 17287122983845778802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2939993431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1545601 + ... + 1547501.

It is an arithmetic number, because the mean of its divisors is an integer number (178051926).

Almost surely, 2^2939993451 is an apocalyptic number.

2939993451 is a deficient number, since it is larger than the sum of its proper divisors (1333252773).

2939993451 is a wasteful number, since it uses less digits than its factorization.

2939993451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891 (or 2888 counting only the distinct ones).

The product of its digits is 2361960, while the sum is 54.

The square root of 2939993451 is about 54221.7064559942. The cubic root of 2939993451 is about 1432.5686876231.

The spelling of 2939993451 in words is "two billion, nine hundred thirty-nine million, nine hundred ninety-three thousand, four hundred fifty-one".