401420234 has 8 divisors (see below), whose sum is σ = 602236740. Its totient is φ = 200674656.

The previous prime is 401420231. The next prime is 401420267. The reversal of 401420234 is 432024104.

It can be written as a sum of positive squares in 2 ways, for example, as 378886225 + 22534009 = 19465^2 + 4747^2 .

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

It is a super-2 number, since 2×401420234² = 322276408529229512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401420231) 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 in 3 ways as a sum of consecutive naturals, for example, 59 + ... + 28334.

Almost surely, 2^401420234 is an apocalyptic number.

401420234 is a deficient number, since it is larger than the sum of its proper divisors (200816506).

401420234 is a wasteful number, since it uses less digits than its factorization.

401420234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35464.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 401420234 is about 20035.4743891928. The cubic root of 401420234 is about 737.6773008174.

Adding to 401420234 its reverse (432024104), we get a palindrome (833444338).

The spelling of 401420234 in words is "four hundred one million, four hundred twenty thousand, two hundred thirty-four".