742145652 has 30 divisors (see below), whose sum is σ = 1940116178. Its totient is φ = 247381776.

The previous prime is 742145639. The next prime is 742145707. The reversal of 742145652 is 256541247.

It is a happy number.

742145652 is a `hidden beast` number, since 74 + 21 + 4 + 565 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 711608976 + 30536676 = 26676^2 + 5526^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1144963 + ... + 1145610.

Almost surely, 2^742145652 is an apocalyptic number.

It is an amenable number.

742145652 is an abundant number, since it is smaller than the sum of its proper divisors (1197970526).

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

742145652 is a wasteful number, since it uses less digits than its factorization.

742145652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290589 (or 2290578 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 742145652 is about 27242.3503391319. The cubic root of 742145652 is about 905.3775383182.

Adding to 742145652 its reverse (256541247), we get a palindrome (998686899).

The spelling of 742145652 in words is "seven hundred forty-two million, one hundred forty-five thousand, six hundred fifty-two".