401520606 has 16 divisors (see below), whose sum is σ = 816652800. Its totient is φ = 131571608.

The previous prime is 401520601. The next prime is 401520607. The reversal of 401520606 is 606025104.

It is a super-2 number, since 2×401520606² = 322437594085214472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401520601) 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, 566766 + ... + 567473.

It is an arithmetic number, because the mean of its divisors is an integer number (51040800).

Almost surely, 2^401520606 is an apocalyptic number.

401520606 is an abundant number, since it is smaller than the sum of its proper divisors (415132194).

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

401520606 is a wasteful number, since it uses less digits than its factorization.

401520606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134303.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 401520606 is about 20037.9790897186. The cubic root of 401520606 is about 737.7387791797.

The spelling of 401520606 in words is "four hundred one million, five hundred twenty thousand, six hundred six".