2215502040 has 32 divisors (see below), whose sum is σ = 6646506480. Its totient is φ = 590800512.

The previous prime is 2215501997. The next prime is 2215502041. The reversal of 2215502040 is 402055122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2215501998 and 2215502016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215502041) 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, 9231139 + ... + 9231378.

Almost surely, 2^2215502040 is an apocalyptic number.

2215502040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215502040 is an abundant number, since it is smaller than the sum of its proper divisors (4431004440).

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

2215502040 is a wasteful number, since it uses less digits than its factorization.

2215502040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18462531 (or 18462527 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2215502040 is about 47069.1198133128. The cubic root of 2215502040 is about 1303.6391209706.

Adding to 2215502040 its reverse (402055122), we get a palindrome (2617557162).

The spelling of 2215502040 in words is "two billion, two hundred fifteen million, five hundred two thousand, forty".