3299451381 has 32 divisors (see below), whose sum is σ = 4994736000. Its totient is φ = 2152085760.

The previous prime is 3299451377. The next prime is 3299451413. The reversal of 3299451381 is 1831549923.

It is a happy number.

3299451381 is a `hidden beast` number, since 32 + 99 + 451 + 3 + 81 = 666.

3299451381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3299451381 - 2² = 3299451377 is a prime.

It is a super-2 number, since 2×3299451381² = 21772758831165614322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3299455381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263421 + ... + 275661.

It is an arithmetic number, because the mean of its divisors is an integer number (156085500).

Almost surely, 2^3299451381 is an apocalyptic number.

It is an amenable number.

3299451381 is a deficient number, since it is larger than the sum of its proper divisors (1695284619).

3299451381 is a wasteful number, since it uses less digits than its factorization.

3299451381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12466 (or 12460 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 3299451381 is about 57440.8511514236. The cubic root of 3299451381 is about 1488.7230446426.

The spelling of 3299451381 in words is "three billion, two hundred ninety-nine million, four hundred fifty-one thousand, three hundred eighty-one".