6215060400 has 120 divisors (see below), whose sum is σ = 19927987920. Its totient is φ = 1655761920.

The previous prime is 6215060363. The next prime is 6215060419. The reversal of 6215060400 is 40605126.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1789866 + ... + 1793334.

It is an arithmetic number, because the mean of its divisors is an integer number (166066566).

Almost surely, 2^6215060400 is an apocalyptic number.

6215060400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6215060400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9963993960).

6215060400 is an abundant number, since it is smaller than the sum of its proper divisors (13712927520).

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

6215060400 is a wasteful number, since it uses less digits than its factorization.

6215060400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4983 (or 4972 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 6215060400 is about 78835.6543703418. The cubic root of 6215060400 is about 1838.5768374607.

Adding to 6215060400 its reverse (40605126), we get a palindrome (6255665526).

The spelling of 6215060400 in words is "six billion, two hundred fifteen million, sixty thousand, four hundred".