401346786 has 16 divisors (see below), whose sum is σ = 822271968. Its totient is φ = 130519200.

The previous prime is 401346763. The next prime is 401346787. The reversal of 401346786 is 687643104.

It is a super-2 number, since 2×401346786² = 322158485265059592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401346787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815500 + ... + 815991.

It is an arithmetic number, because the mean of its divisors is an integer number (51391998).

Almost surely, 2^401346786 is an apocalyptic number.

401346786 is an abundant number, since it is smaller than the sum of its proper divisors (420925182).

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

401346786 is a wasteful number, since it uses less digits than its factorization.

401346786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631537.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 401346786 is about 20033.6413564784. The cubic root of 401346786 is about 737.6323070489.

The spelling of 401346786 in words is "four hundred one million, three hundred forty-six thousand, seven hundred eighty-six".