742320740980 has 144 divisors (see below), whose sum is σ = 2042636279040. Its totient is φ = 221112612864.

The previous prime is 742320740971. The next prime is 742320740983. The reversal of 742320740980 is 89047023247.

It is a self number, because there is not a number n which added to its sum of digits gives 742320740980.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742320740983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 520560 + ... + 1324999.

It is an arithmetic number, because the mean of its divisors is an integer number (14184974160).

Almost surely, 2^742320740980 is an apocalyptic number.

742320740980 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

742320740980 is an abundant number, since it is smaller than the sum of its proper divisors (1300315538060).

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

742320740980 is a wasteful number, since it uses less digits than its factorization.

742320740980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845618 (or 1845603 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 742320740980 in words is "seven hundred forty-two billion, three hundred twenty million, seven hundred forty thousand, nine hundred eighty".