3391318440 has 96 divisors (see below), whose sum is σ = 11670146280. Its totient is φ = 851152896.

The previous prime is 3391318409. The next prime is 3391318459. The reversal of 3391318440 is 448131933.

3391318440 is a `hidden beast` number, since 339 + 1 + 318 + 4 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3142499364 + 248819076 = 56058^2 + 15774^2 .

It is a super-2 number, since 2×3391318440² = 23002081522968067200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3391318395 and 3391318404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270949 + ... + 283188.

Almost surely, 2^3391318440 is an apocalyptic number.

3391318440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3391318440 is an abundant number, since it is smaller than the sum of its proper divisors (8278827840).

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

3391318440 is a wasteful number, since it uses less digits than its factorization.

3391318440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554171 (or 554164 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3391318440 is about 58235.0276036682. The cubic root of 3391318440 is about 1502.4136607447.

The spelling of 3391318440 in words is "three billion, three hundred ninety-one million, three hundred eighteen thousand, four hundred forty".