42389498 has 16 divisors (see below), whose sum is σ = 64638216. Its totient is φ = 20846400.

The previous prime is 42389491. The next prime is 42389507. The reversal of 42389498 is 89498324.

It can be written as a sum of positive squares in 4 ways, for example, as 41434969 + 954529 = 6437^2 + 977^2 .

It is not an unprimeable number, because it can be changed into a prime (42389491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34340 + ... + 35552.

Almost surely, 2^42389498 is an apocalyptic number.

42389498 is a deficient number, since it is larger than the sum of its proper divisors (22248718).

42389498 is a wasteful number, since it uses less digits than its factorization.

42389498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489.

The product of its digits is 497664, while the sum is 47.

The square root of 42389498 is about 6510.7217725841. The cubic root of 42389498 is about 348.6738879736.

The spelling of 42389498 in words is "forty-two million, three hundred eighty-nine thousand, four hundred ninety-eight".