401424242451 has 8 divisors (see below), whose sum is σ = 535236357264. Its totient is φ = 267614144640.

The previous prime is 401424242447. The next prime is 401424242477. The reversal of 401424242451 is 154242424104.

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

It is not a de Polignac number, because 401424242451 - 2² = 401424242447 is a prime.

It is a super-2 number, since 2×401424242451² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401424242411) 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, 45871 + ... + 897191.

It is an arithmetic number, because the mean of its divisors is an integer number (66904544658).

Almost surely, 2^401424242451 is an apocalyptic number.

401424242451 is a deficient number, since it is larger than the sum of its proper divisors (133812114813).

401424242451 is a wasteful number, since it uses less digits than its factorization.

401424242451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008501.

The product of its (nonzero) digits is 40960, while the sum is 33.

Adding to 401424242451 its reverse (154242424104), we get a palindrome (555666666555).

The spelling of 401424242451 in words is "four hundred one billion, four hundred twenty-four million, two hundred forty-two thousand, four hundred fifty-one".