4215242040 has 128 divisors (see below), whose sum is σ = 12827842560. Its totient is φ = 1107984384.

The previous prime is 4215242033. The next prime is 4215242077. The reversal of 4215242040 is 402425124.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4215242040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3175857 + ... + 3177183.

It is an arithmetic number, because the mean of its divisors is an integer number (100217520).

Almost surely, 2^4215242040 is an apocalyptic number.

4215242040 is a gapful number since it is divisible by the number (40) 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 4215242040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6413921280).

4215242040 is an abundant number, since it is smaller than the sum of its proper divisors (8612600520).

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

4215242040 is a wasteful number, since it uses less digits than its factorization.

4215242040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 4215242040 is about 64924.8953791995. The cubic root of 4215242040 is about 1615.3780313634.

Adding to 4215242040 its reverse (402425124), we get a palindrome (4617667164).

The spelling of 4215242040 in words is "four billion, two hundred fifteen million, two hundred forty-two thousand, forty".