401628814 has 8 divisors (see below), whose sum is σ = 602539488. Its totient is φ = 200782320.

The previous prime is 401628803. The next prime is 401628889. The reversal of 401628814 is 418826104.

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

It is a super-2 number, since 2×401628814² = 322611408470093192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401628814.

It is a congruent number.

It is an unprimeable number.

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, 5259 + ... + 28825.

It is an arithmetic number, because the mean of its divisors is an integer number (75317436).

Almost surely, 2^401628814 is an apocalyptic number.

401628814 is a deficient number, since it is larger than the sum of its proper divisors (200910674).

401628814 is a wasteful number, since it uses less digits than its factorization.

401628814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32090.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 401628814 is about 20040.6789805136. The cubic root of 401628814 is about 737.8050456564.

The spelling of 401628814 in words is "four hundred one million, six hundred twenty-eight thousand, eight hundred fourteen".