1015230720 has 288 divisors, whose sum is σ = 3743953920. Its totient is φ = 229662720.

The previous prime is 1015230703. The next prime is 1015230751. The reversal of 1015230720 is 270325101.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 4811415 + ... + 4811625.

It is an arithmetic number, because the mean of its divisors is an integer number (12999840).

Almost surely, 2^1015230720 is an apocalyptic number.

1015230720 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 1015230720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1871976960).

1015230720 is an abundant number, since it is smaller than the sum of its proper divisors (2728723200).

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

1015230720 is a wasteful number, since it uses less digits than its factorization.

1015230720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1015230720 is about 31862.6853858867. The cubic root of 1015230720 is about 1005.0513475906.

Adding to 1015230720 its reverse (270325101), we get a palindrome (1285555821).

The spelling of 1015230720 in words is "one billion, fifteen million, two hundred thirty thousand, seven hundred twenty".