1230745572 has 72 divisors (see below), whose sum is σ = 3631170816. Its totient is φ = 344156544.

The previous prime is 1230745561. The next prime is 1230745573. The reversal of 1230745572 is 2755470321.

1230745572 is a `hidden beast` number, since 1 + 2 + 30 + 74 + 557 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1230745573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40113 + ... + 63800.

It is an arithmetic number, because the mean of its divisors is an integer number (50432928).

Almost surely, 2^1230745572 is an apocalyptic number.

1230745572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230745572 is an abundant number, since it is smaller than the sum of its proper divisors (2400425244).

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

1230745572 is a wasteful number, since it uses less digits than its factorization.

1230745572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103977 (or 103972 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 1230745572 is about 35081.9835813199. The cubic root of 1230745572 is about 1071.6577128501.

The spelling of 1230745572 in words is "one billion, two hundred thirty million, seven hundred forty-five thousand, five hundred seventy-two".