6901440 has 224 divisors, whose sum is σ = 27310080. Its totient is φ = 1437696.

The previous prime is 6901429. The next prime is 6901441. The reversal of 6901440 is 441096.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 6901440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6901441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87321 + ... + 87399.

It is an arithmetic number, because the mean of its divisors is an integer number (121920).

Almost surely, 2^6901440 is an apocalyptic number.

6901440 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 6901440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13655040).

6901440 is an abundant number, since it is smaller than the sum of its proper divisors (20408640).

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

6901440 is a wasteful number, since it uses less digits than its factorization.

6901440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 6901440 is about 2627.0591923289. The cubic root of 6901440 is about 190.3910689500.

The spelling of 6901440 in words is "six million, nine hundred one thousand, four hundred forty".