3648630 has 16 divisors (see below), whose sum is σ = 8756784. Its totient is φ = 972960.

The previous prime is 3648587. The next prime is 3648643. The reversal of 3648630 is 368463.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 121621 = 3648630 / (3 + 6 + 4 + 8 + 6 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60781 + ... + 60840.

It is an arithmetic number, because the mean of its divisors is an integer number (547299).

Almost surely, 2^3648630 is an apocalyptic number.

3648630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3648630 is an abundant number, since it is smaller than the sum of its proper divisors (5108154).

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

3648630 is a wasteful number, since it uses less digits than its factorization.

3648630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121631.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 3648630 is about 1910.1387384167. The cubic root of 3648630 is about 153.9489064212.

It can be divided in two parts, 3648 and 630, that added together give a triangular number (4278 = T₉₂).

The spelling of 3648630 in words is "three million, six hundred forty-eight thousand, six hundred thirty".