401242434 has 32 divisors (see below), whose sum is σ = 837544320. Its totient is φ = 127986432.

The previous prime is 401242427. The next prime is 401242447. The reversal of 401242434 is 434242104.

It is a happy number.

It is a Curzon number.

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, 9459 + ... + 29865.

It is an arithmetic number, because the mean of its divisors is an integer number (26173260).

Almost surely, 2^401242434 is an apocalyptic number.

401242434 is an abundant number, since it is smaller than the sum of its proper divisors (436301886).

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

401242434 is a wasteful number, since it uses less digits than its factorization.

401242434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20554.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 401242434 is about 20031.0367679758. The cubic root of 401242434 is about 737.5683722497.

Adding to 401242434 its reverse (434242104), we get a palindrome (835484538).

The spelling of 401242434 in words is "four hundred one million, two hundred forty-two thousand, four hundred thirty-four".