42698938 has 8 divisors (see below), whose sum is σ = 64210932. Its totient is φ = 21295296.

The previous prime is 42698923. The next prime is 42698939. The reversal of 42698938 is 83989624.

It can be written as a sum of positive squares in 2 ways, for example, as 40487769 + 2211169 = 6363^2 + 1487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 42698891 and 42698900.

It is not an unprimeable number, because it can be changed into a prime (42698939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26095 + ... + 27682.

Almost surely, 2^42698938 is an apocalyptic number.

42698938 is a deficient number, since it is larger than the sum of its proper divisors (21511994).

42698938 is a wasteful number, since it uses less digits than its factorization.

42698938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54176.

The product of its digits is 746496, while the sum is 49.

The square root of 42698938 is about 6534.4424398720. The cubic root of 42698938 is about 349.5202624623.

The spelling of 42698938 in words is "forty-two million, six hundred ninety-eight thousand, nine hundred thirty-eight".