401077018 has 8 divisors (see below), whose sum is σ = 622360980. Its totient is φ = 193623360.

The previous prime is 401077009. The next prime is 401077021. The reversal of 401077018 is 810770104.

It can be written as a sum of positive squares in 2 ways, for example, as 394538769 + 6538249 = 19863^2 + 2557^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3457503 + ... + 3457618.

Almost surely, 2^401077018 is an apocalyptic number.

401077018 is a deficient number, since it is larger than the sum of its proper divisors (221283962).

401077018 is a wasteful number, since it uses less digits than its factorization.

401077018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6915152.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 401077018 is about 20026.9073498631. The cubic root of 401077018 is about 737.4670017985.

The spelling of 401077018 in words is "four hundred one million, seventy-seven thousand, eighteen".