998257142 has 16 divisors (see below), whose sum is σ = 1524791952. Its totient is φ = 490076160.

The previous prime is 998257129. The next prime is 998257157. The reversal of 998257142 is 241752899.

998257142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3542 + ... + 44822.

It is an arithmetic number, because the mean of its divisors is an integer number (95299497).

Almost surely, 2^998257142 is an apocalyptic number.

998257142 is a deficient number, since it is larger than the sum of its proper divisors (526534810).

998257142 is a wasteful number, since it uses less digits than its factorization.

998257142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41503.

The product of its digits is 362880, while the sum is 47.

The square root of 998257142 is about 31595.2075796314. The cubic root of 998257142 is about 999.4187095002.

The spelling of 998257142 in words is "nine hundred ninety-eight million, two hundred fifty-seven thousand, one hundred forty-two".