400339133 has 2 divisors, whose sum is σ = 400339134. Its totient is φ = 400339132.

The previous prime is 400339123. The next prime is 400339141. The reversal of 400339133 is 331933004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 388799524 + 11539609 = 19718^2 + 3397^2 .

It is a cyclic number.

It is not a de Polignac number, because 400339133 - 2¹² = 400335037 is a prime.

It is a super-2 number, since 2×400339133² = 320542842822383378, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400339123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200169566 + 200169567.

It is an arithmetic number, because the mean of its divisors is an integer number (200169567).

Almost surely, 2^400339133 is an apocalyptic number.

It is an amenable number.

400339133 is a deficient number, since it is larger than the sum of its proper divisors (1).

400339133 is an equidigital number, since it uses as much as digits as its factorization.

400339133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 400339133 is about 20008.4765287115. The cubic root of 400339133 is about 737.0144703503.

The spelling of 400339133 in words is "four hundred million, three hundred thirty-nine thousand, one hundred thirty-three".