3628780 has 12 divisors (see below), whose sum is σ = 7620480. Its totient is φ = 1451504.

The previous prime is 3628777. The next prime is 3628783. The reversal of 3628780 is 878263.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3628777) and next prime (3628783).

It is not an unprimeable number, because it can be changed into a prime (3628783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90700 + ... + 90739.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^3628780 is an apocalyptic number.

It is an amenable number.

3628780 is an abundant number, since it is smaller than the sum of its proper divisors (3991700).

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

3628780 is a wasteful number, since it uses less digits than its factorization.

3628780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181448 (or 181446 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 3628780 is about 1904.9356944527. The cubic root of 3628780 is about 153.6692174833.

It can be divided in two parts, 36 and 28780, that multiplied together give a triangular number (1036080 = T₁₄₃₉).

The spelling of 3628780 in words is "three million, six hundred twenty-eight thousand, seven hundred eighty".