3134640 has 80 divisors (see below), whose sum is σ = 10008288. Its totient is φ = 811008.

The previous prime is 3134633. The next prime is 3134671. The reversal of 3134640 is 464313.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8704 + ... + 9056.

Almost surely, 2^3134640 is an apocalyptic number.

3134640 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 3134640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5004144).

3134640 is an abundant number, since it is smaller than the sum of its proper divisors (6873648).

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

3134640 is a wasteful number, since it uses less digits than its factorization.

3134640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3134640 is about 1770.4914571949. The cubic root of 3134640 is about 146.3510660907.

Adding to 3134640 its reverse (464313), we get a palindrome (3598953).

The spelling of 3134640 in words is "three million, one hundred thirty-four thousand, six hundred forty".