6940100 has 18 divisors (see below), whose sum is σ = 15060234. Its totient is φ = 2776000.

The previous prime is 6940099. The next prime is 6940103. The reversal of 6940100 is 10496.

It can be written as a sum of positive squares in 3 ways, for example, as 749956 + 6190144 = 866^2 + 2488^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (6940103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34601 + ... + 34800.

Almost surely, 2^6940100 is an apocalyptic number.

It is an amenable number.

6940100 is an abundant number, since it is smaller than the sum of its proper divisors (8120134).

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

6940100 is a wasteful number, since it uses less digits than its factorization.

6940100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69415 (or 69408 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 6940100 is about 2634.4069541360. The cubic root of 6940100 is about 190.7459136133.

Adding to 6940100 its reverse (10496), we get a palindrome (6950596).

The spelling of 6940100 in words is "six million, nine hundred forty thousand, one hundred".