3187140 has 72 divisors (see below), whose sum is σ = 9831360. Its totient is φ = 770880.

The previous prime is 3187127. The next prime is 3187147. The reversal of 3187140 is 417813.

It is a super-2 number, since 2×3187140² = 20315722759200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3187140.

It is not an unprimeable number, because it can be changed into a prime (3187147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7041 + ... + 7479.

Almost surely, 2^3187140 is an apocalyptic number.

3187140 is a gapful number since it is divisible by the number (30) 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 3187140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4915680).

3187140 is an abundant number, since it is smaller than the sum of its proper divisors (6644220).

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

3187140 is a wasteful number, since it uses less digits than its factorization.

3187140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 3187140 is about 1785.2562841228. The cubic root of 3187140 is about 147.1635922285.

The spelling of 3187140 in words is "three million, one hundred eighty-seven thousand, one hundred forty".