6215040 has 192 divisors, whose sum is σ = 23390640. Its totient is φ = 1511424.

The previous prime is 6215039. The next prime is 6215051. The reversal of 6215040 is 405126.

It is a happy number.

6215040 is a `hidden beast` number, since 621 + 5 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74839 + ... + 74921.

Almost surely, 2^6215040 is an apocalyptic number.

6215040 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 6215040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11695320).

6215040 is an abundant number, since it is smaller than the sum of its proper divisors (17175600).

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

6215040 is a wasteful number, since it uses less digits than its factorization.

6215040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 6215040 is about 2492.9981949452. The cubic root of 6215040 is about 183.8574825841.

The spelling of 6215040 in words is "six million, two hundred fifteen thousand, forty".