3651960 has 64 divisors (see below), whose sum is σ = 11803680. Its totient is φ = 898560.

The previous prime is 3651959. The next prime is 3651979. The reversal of 3651960 is 691563.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 390 + ... + 2730.

Almost surely, 2^3651960 is an apocalyptic number.

3651960 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 3651960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5901840).

3651960 is an abundant number, since it is smaller than the sum of its proper divisors (8151720).

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

3651960 is a wasteful number, since it uses less digits than its factorization.

3651960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 3651960 is about 1911.0102040544. The cubic root of 3651960 is about 153.9957270980.

The spelling of 3651960 in words is "three million, six hundred fifty-one thousand, nine hundred sixty".