142478190 has 96 divisors (see below), whose sum is σ = 406879200. Its totient is φ = 35748864.

The previous prime is 142478179. The next prime is 142478243. The reversal of 142478190 is 91874241.

It is a super-2 number, since 2×142478190² = 40600069251352200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39586 + ... + 43034.

It is an arithmetic number, because the mean of its divisors is an integer number (4238325).

Almost surely, 2^142478190 is an apocalyptic number.

142478190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142478190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203439600).

142478190 is an abundant number, since it is smaller than the sum of its proper divisors (264401010).

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

142478190 is a wasteful number, since it uses less digits than its factorization.

142478190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488 (or 3476 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 142478190 is about 11936.4228309825. The cubic root of 142478190 is about 522.2953144679.

The spelling of 142478190 in words is "one hundred forty-two million, four hundred seventy-eight thousand, one hundred ninety".