399741133 has 32 divisors (see below), whose sum is σ = 480297600. Its totient is φ = 328608000.

The previous prime is 399741131. The next prime is 399741151. The reversal of 399741133 is 331147993.

It is a cyclic number.

It is not a de Polignac number, because 399741133 - 2¹ = 399741131 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399741131) 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, 611835 + ... + 612487.

It is an arithmetic number, because the mean of its divisors is an integer number (15009300).

Almost surely, 2^399741133 is an apocalyptic number.

It is an amenable number.

399741133 is a deficient number, since it is larger than the sum of its proper divisors (80556467).

399741133 is a wasteful number, since it uses less digits than its factorization.

399741133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its digits is 61236, while the sum is 40.

The square root of 399741133 is about 19993.5272775966. The cubic root of 399741133 is about 736.6473197306.

The spelling of 399741133 in words is "three hundred ninety-nine million, seven hundred forty-one thousand, one hundred thirty-three".