6945400 has 144 divisors (see below), whose sum is σ = 20779920. Its totient is φ = 2112000.

The previous prime is 6945397. The next prime is 6945437. The reversal of 6945400 is 45496.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 169380 + ... + 169420.

It is an arithmetic number, because the mean of its divisors is an integer number (144305).

Almost surely, 2^6945400 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 6945400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10389960).

6945400 is an abundant number, since it is smaller than the sum of its proper divisors (13834520).

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

6945400 is a wasteful number, since it uses less digits than its factorization.

6945400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6945400 is about 2635.4126811564. The cubic root of 6945400 is about 190.7944573953.

The spelling of 6945400 in words is "six million, nine hundred forty-five thousand, four hundred".