1015224420 has 48 divisors (see below), whose sum is σ = 3248719488. Its totient is φ = 232051200.

The previous prime is 1015224383. The next prime is 1015224433. The reversal of 1015224420 is 244225101.

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 15 ways as a sum of consecutive naturals, for example, 1208181 + ... + 1209020.

It is an arithmetic number, because the mean of its divisors is an integer number (67681656).

Almost surely, 2^1015224420 is an apocalyptic number.

1015224420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1015224420 is an abundant number, since it is smaller than the sum of its proper divisors (2233495068).

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

1015224420 is a wasteful number, since it uses less digits than its factorization.

1015224420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417220 (or 2417218 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1015224420 is about 31862.5865240096. The cubic root of 1015224420 is about 1005.0492686423.

Adding to 1015224420 its reverse (244225101), we get a palindrome (1259449521).

The spelling of 1015224420 in words is "one billion, fifteen million, two hundred twenty-four thousand, four hundred twenty".