842423750 has 80 divisors (see below), whose sum is σ = 1847408640. Its totient is φ = 281988000.

The previous prime is 842423749. The next prime is 842423753. The reversal of 842423750 is 57324248.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 842423750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842423753) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 375131 + ... + 377369.

It is an arithmetic number, because the mean of its divisors is an integer number (23092608).

Almost surely, 2^842423750 is an apocalyptic number.

842423750 is an abundant number, since it is smaller than the sum of its proper divisors (1004984890).

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

842423750 is a wasteful number, since it uses less digits than its factorization.

842423750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 842423750 is about 29024.5370333447. The cubic root of 842423750 is about 944.4454254764.

Adding to 842423750 its reverse (57324248), we get a palindrome (899747998).

The spelling of 842423750 in words is "eight hundred forty-two million, four hundred twenty-three thousand, seven hundred fifty".