742510140 has 96 divisors (see below), whose sum is σ = 2152894464. Its totient is φ = 191009280.

The previous prime is 742510121. The next prime is 742510141. The reversal of 742510140 is 41015247.

It is a self number, because there is not a number n which added to its sum of digits gives 742510140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742510141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1147297 + ... + 1147943.

It is an arithmetic number, because the mean of its divisors is an integer number (22425984).

Almost surely, 2^742510140 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 742510140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076447232).

742510140 is an abundant number, since it is smaller than the sum of its proper divisors (1410384324).

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

742510140 is a wasteful number, since it uses less digits than its factorization.

742510140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 742510140 is about 27249.0392491185. The cubic root of 742510140 is about 905.5257326060.

Adding to 742510140 its reverse (41015247), we get a palindrome (783525387).

The spelling of 742510140 in words is "seven hundred forty-two million, five hundred ten thousand, one hundred forty".