142085340 has 120 divisors (see below), whose sum is σ = 448842240. Its totient is φ = 37625472.

The previous prime is 142085323. The next prime is 142085347. The reversal of 142085340 is 43580241.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142085347) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 370789 + ... + 371171.

It is an arithmetic number, because the mean of its divisors is an integer number (3740352).

Almost surely, 2^142085340 is an apocalyptic number.

142085340 is a gapful number since it is divisible by the number (10) 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 142085340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224421120).

142085340 is an abundant number, since it is smaller than the sum of its proper divisors (306756900).

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

142085340 is a wasteful number, since it uses less digits than its factorization.

142085340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 142085340 is about 11919.9555368298. The cubic root of 142085340 is about 521.8148372206.

The spelling of 142085340 in words is "one hundred forty-two million, eighty-five thousand, three hundred forty".