401332770 has 96 divisors (see below), whose sum is σ = 1109188080. Its totient is φ = 100331520.

The previous prime is 401332751. The next prime is 401332793. The reversal of 401332770 is 77233104.

It can be written as a sum of positive squares in 8 ways, for example, as 123010281 + 278322489 = 11091^2 + 16683^2 .

It is a super-2 number, since 2×401332770² = 322135984551745800, which contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 705046 + ... + 705614.

Almost surely, 2^401332770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401332770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554594040).

401332770 is an abundant number, since it is smaller than the sum of its proper divisors (707855310).

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

401332770 is a wasteful number, since it uses less digits than its factorization.

401332770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 401332770 is about 20033.2915418311. The cubic root of 401332770 is about 737.6237203145.

Adding to 401332770 its reverse (77233104), we get a palindrome (478565874).

The spelling of 401332770 in words is "four hundred one million, three hundred thirty-two thousand, seven hundred seventy".