401444342 has 8 divisors (see below), whose sum is σ = 648487056. Its totient is φ = 185281992.

The previous prime is 401444317. The next prime is 401444347. The reversal of 401444342 is 243444104.

It is a happy number.

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

It is a super-2 number, since 2×401444342² = 322315119447625928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 15440167 = 401444342 / (4 + 0 + 1 + 4 + 4 + 4 + 3 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401444347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7720058 + ... + 7720109.

It is an arithmetic number, because the mean of its divisors is an integer number (81060882).

Almost surely, 2^401444342 is an apocalyptic number.

401444342 is a deficient number, since it is larger than the sum of its proper divisors (247042714).

401444342 is a wasteful number, since it uses less digits than its factorization.

401444342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15440182.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 401444342 is about 20036.0760130321. The cubic root of 401444342 is about 737.6920680255.

Adding to 401444342 its reverse (243444104), we get a palindrome (644888446).

The spelling of 401444342 in words is "four hundred one million, four hundred forty-four thousand, three hundred forty-two".