42698506 has 8 divisors (see below), whose sum is σ = 64164420. Its totient is φ = 21310368.

The previous prime is 42698471. The next prime is 42698561. The reversal of 42698506 is 60589624.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40005625 + 2692881 = 6325^2 + 1641^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18051 + ... + 20278.

Almost surely, 2^42698506 is an apocalyptic number.

42698506 is a deficient number, since it is larger than the sum of its proper divisors (21465914).

42698506 is a wasteful number, since it uses less digits than its factorization.

42698506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38888.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 42698506 is about 6534.4093841754. The cubic root of 42698506 is about 349.5190837190.

The spelling of 42698506 in words is "forty-two million, six hundred ninety-eight thousand, five hundred six".