401430440431 has 8 divisors (see below), whose sum is σ = 412750047680. Its totient is φ = 390135577248.

The previous prime is 401430440429. The next prime is 401430440441. The reversal of 401430440431 is 134044034104.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401430440431 - 2¹ = 401430440429 is a prime.

It is a super-2 number, since 2×401430440431² (a number of 24 digits) contains 22 as substring.

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 401430440431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401430440401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6153111 + ... + 6218008.

It is an arithmetic number, because the mean of its divisors is an integer number (51593755960).

Almost surely, 2^401430440431 is an apocalyptic number.

401430440431 is a deficient number, since it is larger than the sum of its proper divisors (11319607249).

401430440431 is a wasteful number, since it uses less digits than its factorization.

401430440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12372033.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 401430440431 its reverse (134044034104), we get a palindrome (535474474535).

The spelling of 401430440431 in words is "four hundred one billion, four hundred thirty million, four hundred forty thousand, four hundred thirty-one".