913042220 has 24 divisors (see below), whose sum is σ = 1961980944. Its totient is φ = 356723136.

The previous prime is 913042199. The next prime is 913042271. The reversal of 913042220 is 22240319.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529979 + ... + 531698.

It is an arithmetic number, because the mean of its divisors is an integer number (81749206).

Almost surely, 2^913042220 is an apocalyptic number.

It is an amenable number.

913042220 is an abundant number, since it is smaller than the sum of its proper divisors (1048938724).

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

913042220 is a wasteful number, since it uses less digits than its factorization.

913042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061729 (or 1061727 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 913042220 is about 30216.5884904302. The cubic root of 913042220 is about 970.1307862054.

Adding to 913042220 its reverse (22240319), we get a palindrome (935282539).

The spelling of 913042220 in words is "nine hundred thirteen million, forty-two thousand, two hundred twenty".