142685424 has 120 divisors (see below), whose sum is σ = 458800992. Its totient is φ = 40550400.

The previous prime is 142685419. The next prime is 142685429. The reversal of 142685424 is 424586241.

It is an interprime number because it is at equal distance from previous prime (142685419) and next prime (142685429).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142685429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355624 + ... + 356024.

Almost surely, 2^142685424 is an apocalyptic number.

142685424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142685424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229400496).

142685424 is an abundant number, since it is smaller than the sum of its proper divisors (316115568).

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

142685424 is a wasteful number, since it uses less digits than its factorization.

142685424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775 (or 766 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 142685424 is about 11945.1004181631. The cubic root of 142685424 is about 522.5484173290.

The spelling of 142685424 in words is "one hundred forty-two million, six hundred eighty-five thousand, four hundred twenty-four".