42319798 has 4 divisors (see below), whose sum is σ = 63479700. Its totient is φ = 21159898.

The previous prime is 42319789. The next prime is 42319799. The reversal of 42319798 is 89791324.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42319799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10579948 + ... + 10579951.

It is an arithmetic number, because the mean of its divisors is an integer number (15869925).

Almost surely, 2^42319798 is an apocalyptic number.

42319798 is a deficient number, since it is larger than the sum of its proper divisors (21159902).

42319798 is a wasteful number, since it uses less digits than its factorization.

42319798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21159901.

The product of its digits is 108864, while the sum is 43.

The square root of 42319798 is about 6505.3668612923. The cubic root of 42319798 is about 348.4826778598.

The spelling of 42319798 in words is "forty-two million, three hundred nineteen thousand, seven hundred ninety-eight".