2232015440 has 80 divisors (see below), whose sum is σ = 5287161600. Its totient is φ = 876135936.

The previous prime is 2232015433. The next prime is 2232015509. The reversal of 2232015440 is 445102322.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×2232015440³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1130294 + ... + 1132266.

It is an arithmetic number, because the mean of its divisors is an integer number (66089520).

Almost surely, 2^2232015440 is an apocalyptic number.

2232015440 is a gapful number since it is divisible by the number (20) 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 2232015440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643580800).

2232015440 is an abundant number, since it is smaller than the sum of its proper divisors (3055146160).

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

2232015440 is a wasteful number, since it uses less digits than its factorization.

2232015440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2232015440 is about 47244.2106506183. The cubic root of 2232015440 is about 1306.8700288554.

Adding to 2232015440 its reverse (445102322), we get a palindrome (2677117762).

The spelling of 2232015440 in words is "two billion, two hundred thirty-two million, fifteen thousand, four hundred forty".