400601297 has 4 divisors (see below), whose sum is σ = 406089060. Its totient is φ = 395113536.

The previous prime is 400601293. The next prime is 400601309. The reversal of 400601297 is 792106004.

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 139972561 + 260628736 = 11831^2 + 16144^2 .

It is a cyclic number.

It is not a de Polignac number, because 400601297 - 2² = 400601293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400601293) 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, 2743772 + ... + 2743917.

It is an arithmetic number, because the mean of its divisors is an integer number (101522265).

Almost surely, 2^400601297 is an apocalyptic number.

It is an amenable number.

400601297 is a deficient number, since it is larger than the sum of its proper divisors (5487763).

400601297 is an equidigital number, since it uses as much as digits as its factorization.

400601297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487762.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 400601297 is about 20015.0267798971. The cubic root of 400601297 is about 737.1753143983.

The spelling of 400601297 in words is "four hundred million, six hundred one thousand, two hundred ninety-seven".