400268097 has 12 divisors (see below), whose sum is σ = 578440980. Its totient is φ = 266718048.

The previous prime is 400268069. The next prime is 400268119. The reversal of 400268097 is 790862004.

It can be written as a sum of positive squares in 2 ways, for example, as 258277041 + 141991056 = 16071^2 + 11916^2 .

It is not a de Polignac number, because 400268097 - 2¹¹ = 400266049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400268017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11779 + ... + 30647.

It is an arithmetic number, because the mean of its divisors is an integer number (48203415).

Almost surely, 2^400268097 is an apocalyptic number.

It is an amenable number.

400268097 is a deficient number, since it is larger than the sum of its proper divisors (178172883).

400268097 is a wasteful number, since it uses less digits than its factorization.

400268097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21232 (or 21229 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 400268097 is about 20006.7013023137. The cubic root of 400268097 is about 736.9708759303.

The spelling of 400268097 in words is "four hundred million, two hundred sixty-eight thousand, ninety-seven".