401335242 has 32 divisors (see below), whose sum is σ = 1000733184. Its totient is φ = 104242800.

The previous prime is 401335241. The next prime is 401335243. The reversal of 401335242 is 242533104.

It is an interprime number because it is at equal distance from previous prime (401335241) and next prime (401335243).

It is a super-2 number, since 2×401335242² = 322139952942397128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401335241) 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 15 ways as a sum of consecutive naturals, for example, 433884 + ... + 434807.

It is an arithmetic number, because the mean of its divisors is an integer number (31272912).

Almost surely, 2^401335242 is an apocalyptic number.

401335242 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

401335242 is an abundant number, since it is smaller than the sum of its proper divisors (599397942).

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

401335242 is a wasteful number, since it uses less digits than its factorization.

401335242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868714.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 401335242 is about 20033.3532390361. The cubic root of 401335242 is about 737.6252347702.

Adding to 401335242 its reverse (242533104), we get a palindrome (643868346).

The spelling of 401335242 in words is "four hundred one million, three hundred thirty-five thousand, two hundred forty-two".