3215401860 has 48 divisors (see below), whose sum is σ = 9821593152. Its totient is φ = 779491200.

The previous prime is 3215401859. The next prime is 3215401907. The reversal of 3215401860 is 681045123.

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

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, 2435251 + ... + 2436570.

It is an arithmetic number, because the mean of its divisors is an integer number (204616524).

Almost surely, 2^3215401860 is an apocalyptic number.

3215401860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3215401860 is an abundant number, since it is smaller than the sum of its proper divisors (6606191292).

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

3215401860 is a wasteful number, since it uses less digits than its factorization.

3215401860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871844 (or 4871842 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 3215401860 is about 56704.5135769632. The cubic root of 3215401860 is about 1475.9730222520.

Adding to 3215401860 its reverse (681045123), we get a palindrome (3896446983).

The spelling of 3215401860 in words is "three billion, two hundred fifteen million, four hundred one thousand, eight hundred sixty".