4640346 has 12 divisors (see below), whose sum is σ = 10054122. Its totient is φ = 1546776.

The previous prime is 4640329. The next prime is 4640369. The reversal of 4640346 is 6430464.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4575321 + 65025 = 2139^2 + 255^2 .

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128881 + ... + 128916.

Almost surely, 2^4640346 is an apocalyptic number.

4640346 is an abundant number, since it is smaller than the sum of its proper divisors (5413776).

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

4640346 is a wasteful number, since it uses less digits than its factorization.

4640346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257805 (or 257802 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 4640346 is about 2154.1462345904. The cubic root of 4640346 is about 166.7951640162.

The spelling of 4640346 in words is "four million, six hundred forty thousand, three hundred forty-six".