742288140 has 72 divisors (see below), whose sum is σ = 2456305488. Its totient is φ = 179948160.

The previous prime is 742288139. The next prime is 742288189. The reversal of 742288140 is 41882247.

742288140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 742288095 and 742288104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185467 + ... + 189426.

It is an arithmetic number, because the mean of its divisors is an integer number (34115354).

Almost surely, 2^742288140 is an apocalyptic number.

It is an amenable number.

742288140 is an abundant number, since it is smaller than the sum of its proper divisors (1714017348).

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

742288140 is a wasteful number, since it uses less digits than its factorization.

742288140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374919 (or 374914 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 742288140 is about 27244.9654064746. The cubic root of 742288140 is about 905.4354771604.

It can be divided in two parts, 742 and 288140, that added together give a palindrome (288882).

The spelling of 742288140 in words is "seven hundred forty-two million, two hundred eighty-eight thousand, one hundred forty".