401401340 has 24 divisors (see below), whose sum is σ = 854818272. Its totient is φ = 158298560.

The previous prime is 401401333. The next prime is 401401373. The reversal of 401401340 is 43104104.

It is a super-2 number, since 2×401401340² = 322246071507591200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139919 + ... + 142758.

It is an arithmetic number, because the mean of its divisors is an integer number (35617428).

Almost surely, 2^401401340 is an apocalyptic number.

It is an amenable number.

401401340 is an abundant number, since it is smaller than the sum of its proper divisors (453416932).

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

401401340 is a wasteful number, since it uses less digits than its factorization.

401401340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282757 (or 282755 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 401401340 is about 20035.0028699773. The cubic root of 401401340 is about 737.6657269999.

Adding to 401401340 its reverse (43104104), we get a palindrome (444505444).

The spelling of 401401340 in words is "four hundred one million, four hundred one thousand, three hundred forty".