3645448156 has 24 divisors (see below), whose sum is σ = 7329079296. Its totient is φ = 1554152880.

The previous prime is 3645448153. The next prime is 3645448189. The reversal of 3645448156 is 6518445463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645448151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335476 + ... + 346171.

It is an arithmetic number, because the mean of its divisors is an integer number (305378304).

Almost surely, 2^3645448156 is an apocalyptic number.

It is an amenable number.

3645448156 is an abundant number, since it is smaller than the sum of its proper divisors (3683631140).

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

3645448156 is a wasteful number, since it uses less digits than its factorization.

3645448156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681849 (or 681847 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 46.

The square root of 3645448156 is about 60377.5467868644. The cubic root of 3645448156 is about 1539.0414223444.

The spelling of 3645448156 in words is "three billion, six hundred forty-five million, four hundred forty-eight thousand, one hundred fifty-six".