400094329 has 4 divisors (see below), whose sum is σ = 400482676. Its totient is φ = 399705984.

The previous prime is 400094309. The next prime is 400094369. The reversal of 400094329 is 923490004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 370370025 + 29724304 = 19245^2 + 5452^2 .

It is a cyclic number.

It is not a de Polignac number, because 400094329 - 2⁹ = 400093817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400094329.

It is not an unprimeable number, because it can be changed into a prime (400094309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192624 + ... + 194689.

It is an arithmetic number, because the mean of its divisors is an integer number (100120669).

Almost surely, 2^400094329 is an apocalyptic number.

It is an amenable number.

400094329 is a deficient number, since it is larger than the sum of its proper divisors (388347).

400094329 is a wasteful number, since it uses less digits than its factorization.

400094329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388346.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 400094329 is about 20002.3580859858. The cubic root of 400094329 is about 736.8642136771.

The spelling of 400094329 in words is "four hundred million, ninety-four thousand, three hundred twenty-nine".