6940458 has 96 divisors (see below), whose sum is σ = 18659520. Its totient is φ = 1905120.

The previous prime is 6940441. The next prime is 6940477. The reversal of 6940458 is 8540496.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 113748 + ... + 113808.

It is an arithmetic number, because the mean of its divisors is an integer number (194370).

Almost surely, 2^6940458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6940458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9329760).

6940458 is an abundant number, since it is smaller than the sum of its proper divisors (11719062).

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

6940458 is a wasteful number, since it uses less digits than its factorization.

6940458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 6940458 is about 2634.4749002410. The cubic root of 6940458 is about 190.7491933866.

The spelling of 6940458 in words is "six million, nine hundred forty thousand, four hundred fifty-eight".