8742820436 has 48 divisors (see below), whose sum is σ = 18665256960. Its totient is φ = 3499705440.

The previous prime is 8742820337. The next prime is 8742820441. The reversal of 8742820436 is 6340282478.

It is a happy number.

It is a super-2 number, since 2×8742820436² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77960 + ... + 153503.

It is an arithmetic number, because the mean of its divisors is an integer number (388859520).

Almost surely, 2^8742820436 is an apocalyptic number.

It is an amenable number.

8742820436 is an abundant number, since it is smaller than the sum of its proper divisors (9922436524).

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

8742820436 is a wasteful number, since it uses less digits than its factorization.

8742820436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231564 (or 231562 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 44.

The square root of 8742820436 is about 93503.0504101337. The cubic root of 8742820436 is about 2060.0788950838.

The spelling of 8742820436 in words is "eight billion, seven hundred forty-two million, eight hundred twenty thousand, four hundred thirty-six".