1215014460 has 96 divisors (see below), whose sum is σ = 3727987200. Its totient is φ = 293226240.

The previous prime is 1215014443. The next prime is 1215014467. The reversal of 1215014460 is 644105121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1215014460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215014467) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147121 + ... + 155159.

It is an arithmetic number, because the mean of its divisors is an integer number (38833200).

Almost surely, 2^1215014460 is an apocalyptic number.

1215014460 is a gapful number since it is divisible by the number (10) 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 1215014460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1863993600).

1215014460 is an abundant number, since it is smaller than the sum of its proper divisors (2512972740).

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

1215014460 is a wasteful number, since it uses less digits than its factorization.

1215014460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8291 (or 8289 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1215014460 is about 34857.0575350244. The cubic root of 1215014460 is about 1067.0722244724.

Adding to 1215014460 its reverse (644105121), we get a palindrome (1859119581).

The spelling of 1215014460 in words is "one billion, two hundred fifteen million, fourteen thousand, four hundred sixty".