742774860 has 240 divisors, whose sum is σ = 2443506912. Its totient is φ = 188697600.

The previous prime is 742774853. The next prime is 742774933. The reversal of 742774860 is 68477247.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3520155 + ... + 3520365.

Almost surely, 2^742774860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742774860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221753456).

742774860 is an abundant number, since it is smaller than the sum of its proper divisors (1700732052).

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

742774860 is a wasteful number, since it uses less digits than its factorization.

742774860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The square root of 742774860 is about 27253.8962352175. The cubic root of 742774860 is about 905.6333326137.

The spelling of 742774860 in words is "seven hundred forty-two million, seven hundred seventy-four thousand, eight hundred sixty".