6936440 has 48 divisors (see below), whose sum is σ = 18160200. Its totient is φ = 2377536.

The previous prime is 6936431. The next prime is 6936451. The reversal of 6936440 is 446396.

It is a super-2 number, since 2×6936440² = 96228399747200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6936397 and 6936406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191 + ... + 3729.

Almost surely, 2^6936440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6936440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9080100).

6936440 is an abundant number, since it is smaller than the sum of its proper divisors (11223760).

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

6936440 is a wasteful number, since it uses less digits than its factorization.

6936440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 6936440 is about 2633.7122090312. The cubic root of 6936440 is about 190.7123764979.

The spelling of 6936440 in words is "six million, nine hundred thirty-six thousand, four hundred forty".