401328486 has 64 divisors (see below), whose sum is σ = 1016971200. Its totient is φ = 116218368.

The previous prime is 401328481. The next prime is 401328493. The reversal of 401328486 is 684823104.

401328486 is a `hidden beast` number, since 40 + 132 + 8 + 486 = 666.

It is a super-2 number, since 2×401328486² = 322129107350104392, 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 401328486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401328481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4881 + ... + 28748.

It is an arithmetic number, because the mean of its divisors is an integer number (15890175).

Almost surely, 2^401328486 is an apocalyptic number.

401328486 is an abundant number, since it is smaller than the sum of its proper divisors (615642714).

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

401328486 is a wasteful number, since it uses less digits than its factorization.

401328486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33670 (or 33664 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 401328486 is about 20033.1846195257. The cubic root of 401328486 is about 737.6210957334.

The spelling of 401328486 in words is "four hundred one million, three hundred twenty-eight thousand, four hundred eighty-six".