3478740 has 48 divisors (see below), whose sum is σ = 10010112. Its totient is φ = 902016.

The previous prime is 3478721. The next prime is 3478747. The reversal of 3478740 is 478743.

It is a happy number.

3478740 is nontrivially palindromic in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3478747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (208544).

Almost surely, 2^3478740 is an apocalyptic number.

3478740 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 3478740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5005056).

3478740 is an abundant number, since it is smaller than the sum of its proper divisors (6531372).

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

3478740 is a wasteful number, since it uses less digits than its factorization.

3478740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 3478740 is about 1865.1380645947. The cubic root of 3478740 is about 151.5214055520.

The spelling of 3478740 in words is "three million, four hundred seventy-eight thousand, seven hundred forty".