401421234 has 16 divisors (see below), whose sum is σ = 808704288. Its totient is φ = 132830112.

The previous prime is 401421217. The next prime is 401421247. The reversal of 401421234 is 432124104.

It is a super-2 number, since 2×401421234² = 322278014212165512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401421234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243352 + ... + 244995.

It is an arithmetic number, because the mean of its divisors is an integer number (50544018).

Almost surely, 2^401421234 is an apocalyptic number.

401421234 is an abundant number, since it is smaller than the sum of its proper divisors (407283054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401421234 is a wasteful number, since it uses less digits than its factorization.

401421234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488489.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 401421234 is about 20035.4993449128. The cubic root of 401421234 is about 737.6779133731.

Adding to 401421234 its reverse (432124104), we get a palindrome (833545338).

The spelling of 401421234 in words is "four hundred one million, four hundred twenty-one thousand, two hundred thirty-four".