3474640 has 60 divisors (see below), whose sum is σ = 8781804. Its totient is φ = 1277952.

The previous prime is 3474631. The next prime is 3474641. The reversal of 3474640 is 464743.

3474640 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 59536 + 3415104 = 244^2 + 1848^2 .

It is a d-powerful number, because it can be written as 3¹³ + 4⁶ + 7⁷ + 4⁶ + 6 + 4¹⁰ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 3474599 and 3474608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3474641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13392 + ... + 13648.

Almost surely, 2^3474640 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 3474640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4390902).

3474640 is an abundant number, since it is smaller than the sum of its proper divisors (5307164).

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

3474640 is a wasteful number, since it uses less digits than its factorization.

3474640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 3474640 is about 1864.0386262092. The cubic root of 3474640 is about 151.4618550649.

It can be divided in two parts, 3474 and 640, that added together give a palindrome (4114).

The spelling of 3474640 in words is "three million, four hundred seventy-four thousand, six hundred forty".