142840698 has 128 divisors (see below), whose sum is σ = 406425600. Its totient is φ = 32209920.

The previous prime is 142840673. The next prime is 142840729. The reversal of 142840698 is 896048241.

It is a super-3 number, since 3×142840698³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101403 + ... + 102801.

It is an arithmetic number, because the mean of its divisors is an integer number (3175200).

Almost surely, 2^142840698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142840698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203212800).

142840698 is an abundant number, since it is smaller than the sum of its proper divisors (263584902).

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

142840698 is a wasteful number, since it uses less digits than its factorization.

142840698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 142840698 is about 11951.5981358143. The cubic root of 142840698 is about 522.7378988851.

The spelling of 142840698 in words is "one hundred forty-two million, eight hundred forty thousand, six hundred ninety-eight".