742018140 has 144 divisors (see below), whose sum is σ = 2318883840. Its totient is φ = 191963520.

The previous prime is 742018129. The next prime is 742018141. The reversal of 742018140 is 41810247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742018141) 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, 1175625 + ... + 1176255.

It is an arithmetic number, because the mean of its divisors is an integer number (16103360).

Almost surely, 2^742018140 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 742018140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1159441920).

742018140 is an abundant number, since it is smaller than the sum of its proper divisors (1576865700).

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

742018140 is a wasteful number, since it uses less digits than its factorization.

742018140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 742018140 is about 27240.0099118925. The cubic root of 742018140 is about 905.3256827681.

Adding to 742018140 its reverse (41810247), we get a palindrome (783828387).

The spelling of 742018140 in words is "seven hundred forty-two million, eighteen thousand, one hundred forty".