401432093 has 2 divisors, whose sum is σ = 401432094. Its totient is φ = 401432092.

The previous prime is 401432089. The next prime is 401432099. The reversal of 401432093 is 390234104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355775044 + 45657049 = 18862^2 + 6757^2 .

It is a cyclic number.

It is not a de Polignac number, because 401432093 - 2² = 401432089 is a prime.

It is a super-2 number, since 2×401432093² = 322295450580721298, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401432099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200716046 + 200716047.

It is an arithmetic number, because the mean of its divisors is an integer number (200716047).

Almost surely, 2^401432093 is an apocalyptic number.

It is an amenable number.

401432093 is a deficient number, since it is larger than the sum of its proper divisors (1).

401432093 is an equidigital number, since it uses as much as digits as its factorization.

401432093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 401432093 is about 20035.7703370746. The cubic root of 401432093 is about 737.6845650493.

Adding to 401432093 its reverse (390234104), we get a palindrome (791666197).

The spelling of 401432093 in words is "four hundred one million, four hundred thirty-two thousand, ninety-three".