42139098 has 24 divisors (see below), whose sum is σ = 92851200. Its totient is φ = 13807944.

The previous prime is 42139087. The next prime is 42139109. The reversal of 42139098 is 89093124.

It is an interprime number because it is at equal distance from previous prime (42139087) and next prime (42139109).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18778 + ... + 20901.

It is an arithmetic number, because the mean of its divisors is an integer number (3868800).

Almost surely, 2^42139098 is an apocalyptic number.

42139098 is an abundant number, since it is smaller than the sum of its proper divisors (50712102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42139098 is a wasteful number, since it uses less digits than its factorization.

42139098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39746 (or 39743 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 42139098 is about 6491.4634713599. The cubic root of 42139098 is about 347.9859784283.

The spelling of 42139098 in words is "forty-two million, one hundred thirty-nine thousand, ninety-eight".