3642681980 has 48 divisors (see below), whose sum is σ = 8865593856. Its totient is φ = 1231325760.

The previous prime is 3642681949. The next prime is 3642682003. The reversal of 3642681980 is 891862463.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173294 + ... + 193173.

It is an arithmetic number, because the mean of its divisors is an integer number (184699872).

Almost surely, 2^3642681980 is an apocalyptic number.

It is an amenable number.

3642681980 is an abundant number, since it is smaller than the sum of its proper divisors (5222911876).

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

3642681980 is a wasteful number, since it uses less digits than its factorization.

3642681980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366554 (or 366552 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 3642681980 is about 60354.6351161201. The cubic root of 3642681980 is about 1538.6520475658.

The spelling of 3642681980 in words is "three billion, six hundred forty-two million, six hundred eighty-one thousand, nine hundred eighty".