6949440 has 168 divisors, whose sum is σ = 25359360. Its totient is φ = 1741824.

The previous prime is 6949429. The next prime is 6949457. The reversal of 6949440 is 449496.

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 = 6949395 and 6949404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54657 + ... + 54783.

Almost surely, 2^6949440 is an apocalyptic number.

6949440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6949440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12679680).

6949440 is an abundant number, since it is smaller than the sum of its proper divisors (18409920).

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

6949440 is a wasteful number, since it uses less digits than its factorization.

6949440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 156 counting only the distinct ones).

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

The square root of 6949440 is about 2636.1790530994. The cubic root of 6949440 is about 190.8314439956.

The spelling of 6949440 in words is "six million, nine hundred forty-nine thousand, four hundred forty".