400003340 has 48 divisors (see below), whose sum is σ = 917802144. Its totient is φ = 145228800.

The previous prime is 400003309. The next prime is 400003367. The reversal of 400003340 is 43300004.

400003340 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×400003340² = 320005344022311200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214010 + ... + 215870.

It is an arithmetic number, because the mean of its divisors is an integer number (19120878).

Almost surely, 2^400003340 is an apocalyptic number.

It is an amenable number.

400003340 is an abundant number, since it is smaller than the sum of its proper divisors (517798804).

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

400003340 is a wasteful number, since it uses less digits than its factorization.

400003340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858 (or 2856 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 400003340 is about 20000.0834998257. The cubic root of 400003340 is about 736.8083504999.

Adding to 400003340 its reverse (43300004), we get a palindrome (443303344).

The spelling of 400003340 in words is "four hundred million, three thousand, three hundred forty".