3628121790 has 32 divisors (see below), whose sum is σ = 8748775296. Its totient is φ = 962912160.

The previous prime is 3628121771. The next prime is 3628121803. The reversal of 3628121790 is 971218263.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280252 + ... + 292911.

It is an arithmetic number, because the mean of its divisors is an integer number (273399228).

Almost surely, 2^3628121790 is an apocalyptic number.

3628121790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3628121790 is an abundant number, since it is smaller than the sum of its proper divisors (5120653506).

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

3628121790 is a wasteful number, since it uses less digits than its factorization.

3628121790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573384.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 3628121790 is about 60233.8923696618. The cubic root of 3628121790 is about 1536.5992577174.

The spelling of 3628121790 in words is "three billion, six hundred twenty-eight million, one hundred twenty-one thousand, seven hundred ninety".