401420303 has 4 divisors (see below), whose sum is σ = 425033280. Its totient is φ = 377807328.

The previous prime is 401420281. The next prime is 401420317. The reversal of 401420303 is 303024104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401420303 - 2¹² = 401416207 is a prime.

It is a super-2 number, since 2×401420303² = 322276519321223618, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 23612959 = 401420303 / (4 + 0 + 1 + 4 + 2 + 0 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401422303) 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, 11806463 + ... + 11806496.

It is an arithmetic number, because the mean of its divisors is an integer number (106258320).

Almost surely, 2^401420303 is an apocalyptic number.

401420303 is a deficient number, since it is larger than the sum of its proper divisors (23612977).

401420303 is a wasteful number, since it uses less digits than its factorization.

401420303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23612976.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 401420303 is about 20035.4761111385. The cubic root of 401420303 is about 737.6773430838.

Adding to 401420303 its reverse (303024104), we get a palindrome (704444407).

The spelling of 401420303 in words is "four hundred one million, four hundred twenty thousand, three hundred three".