401435142 has 16 divisors (see below), whose sum is σ = 803066880. Its totient is φ = 133778952.

The previous prime is 401435129. The next prime is 401435147. The reversal of 401435142 is 241534104.

It is a super-2 number, since 2×401435142² = 322300346465120328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401435147) 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, 42243 + ... + 50865.

It is an arithmetic number, because the mean of its divisors is an integer number (50191680).

Almost surely, 2^401435142 is an apocalyptic number.

401435142 is an abundant number, since it is smaller than the sum of its proper divisors (401631738).

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

401435142 is a wasteful number, since it uses less digits than its factorization.

401435142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16387.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 401435142 is about 20035.8464258439. The cubic root of 401435142 is about 737.6864326915.

Adding to 401435142 its reverse (241534104), we get a palindrome (642969246).

The spelling of 401435142 in words is "four hundred one million, four hundred thirty-five thousand, one hundred forty-two".