42098312 has 8 divisors (see below), whose sum is σ = 78934350. Its totient is φ = 21049152.

The previous prime is 42098299. The next prime is 42098317. The reversal of 42098312 is 21389024.

It can be written as a sum of positive squares in only one way, i.e., 22791076 + 19307236 = 4774^2 + 4394^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (42098317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2631137 + ... + 2631152.

Almost surely, 2^42098312 is an apocalyptic number.

It is an amenable number.

42098312 is a deficient number, since it is larger than the sum of its proper divisors (36836038).

42098312 is a wasteful number, since it uses less digits than its factorization.

42098312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262295 (or 5262291 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 42098312 is about 6488.3212004339. The cubic root of 42098312 is about 347.8736715026.

It can be divided in two parts, 4209 and 8312, that added together give a palindrome (12521).

The spelling of 42098312 in words is "forty-two million, ninety-eight thousand, three hundred twelve".