401333340 has 48 divisors (see below), whose sum is σ = 1142789760. Its totient is φ = 105207360.

The previous prime is 401333327. The next prime is 401333357. The reversal of 401333340 is 43333104.

It is a super-2 number, since 2×401333340² = 322136899591111200, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 53146 + ... + 60225.

It is an arithmetic number, because the mean of its divisors is an integer number (23808120).

Almost surely, 2^401333340 is an apocalyptic number.

It is an amenable number.

401333340 is an abundant number, since it is smaller than the sum of its proper divisors (741456420).

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

401333340 is a wasteful number, since it uses less digits than its factorization.

401333340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113442 (or 113440 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 401333340 is about 20033.3057681452. The cubic root of 401333340 is about 737.6240695221.

Adding to 401333340 its reverse (43333104), we get a palindrome (444666444).

The spelling of 401333340 in words is "four hundred one million, three hundred thirty-three thousand, three hundred forty".