401432293 has 2 divisors, whose sum is σ = 401432294. Its totient is φ = 401432292.

The previous prime is 401432281. The next prime is 401432327. The reversal of 401432293 is 392234104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278155684 + 123276609 = 16678^2 + 11103^2 .

It is a cyclic number.

It is not a de Polignac number, because 401432293 - 2⁵ = 401432261 is a prime.

It is a super-2 number, since 2×401432293² = 322295771726475698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401432243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200716146 + 200716147.

It is an arithmetic number, because the mean of its divisors is an integer number (200716147).

Almost surely, 2^401432293 is an apocalyptic number.

It is an amenable number.

401432293 is a deficient number, since it is larger than the sum of its proper divisors (1).

401432293 is an equidigital number, since it uses as much as digits as its factorization.

401432293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 401432293 is about 20035.7753281474. The cubic root of 401432293 is about 737.6846875581.

Adding to 401432293 its reverse (392234104), we get a palindrome (793666397).

It can be divided in two parts, 40143 and 2293, that added together give a square (42436 = 206²).

The spelling of 401432293 in words is "four hundred one million, four hundred thirty-two thousand, two hundred ninety-three".