401135442 has 8 divisors (see below), whose sum is σ = 802270896. Its totient is φ = 133711812.

The previous prime is 401135437. The next prime is 401135447. The reversal of 401135442 is 244531104.

It is an interprime number because it is at equal distance from previous prime (401135437) and next prime (401135447).

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

401135442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (401135447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33427948 + ... + 33427959.

It is an arithmetic number, because the mean of its divisors is an integer number (100283862).

Almost surely, 2^401135442 is an apocalyptic number.

401135442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401135442 is a wasteful number, since it uses less digits than its factorization.

401135442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66855912.

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

The square root of 401135442 is about 20028.3659343442. The cubic root of 401135442 is about 737.5028084543.

Adding to 401135442 its reverse (244531104), we get a palindrome (645666546).

The spelling of 401135442 in words is "four hundred one million, one hundred thirty-five thousand, four hundred forty-two".