3504740 has 48 divisors (see below), whose sum is σ = 8104320. Its totient is φ = 1267200.

The previous prime is 3504727. The next prime is 3504757. The reversal of 3504740 is 474053.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 8540 + ... + 8940.

It is an arithmetic number, because the mean of its divisors is an integer number (168840).

Almost surely, 2^3504740 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 3504740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4052160).

3504740 is an abundant number, since it is smaller than the sum of its proper divisors (4599580).

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

3504740 is a wasteful number, since it uses less digits than its factorization.

3504740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 3504740 is about 1872.0950830553. The cubic root of 3504740 is about 151.8979578271.

Adding to 3504740 its reverse (474053), we get a palindrome (3978793).

The spelling of 3504740 in words is "three million, five hundred four thousand, seven hundred forty".