401212434 has 32 divisors (see below), whose sum is σ = 918245376. Its totient is φ = 114483600.

The previous prime is 401212411. The next prime is 401212459. The reversal of 401212434 is 434212104.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 401212434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28959 + ... + 40509.

It is an arithmetic number, because the mean of its divisors is an integer number (28695168).

Almost surely, 2^401212434 is an apocalyptic number.

401212434 is an abundant number, since it is smaller than the sum of its proper divisors (517032942).

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

401212434 is a wasteful number, since it uses less digits than its factorization.

401212434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12390.

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

The square root of 401212434 is about 20030.2879160535. The cubic root of 401212434 is about 737.5499896786.

Adding to 401212434 its reverse (434212104), we get a palindrome (835424538).

The spelling of 401212434 in words is "four hundred one million, two hundred twelve thousand, four hundred thirty-four".