142452420 has 96 divisors (see below), whose sum is σ = 439641216. Its totient is φ = 34176000.

The previous prime is 142452407. The next prime is 142452439. The reversal of 142452420 is 24254241.

It is a happy number.

142452420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65592 + ... + 67728.

It is an arithmetic number, because the mean of its divisors is an integer number (4579596).

Almost surely, 2^142452420 is an apocalyptic number.

142452420 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 142452420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219820608).

142452420 is an abundant number, since it is smaller than the sum of its proper divisors (297188796).

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

142452420 is a wasteful number, since it uses less digits than its factorization.

142452420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 142452420 is about 11935.3433130346. The cubic root of 142452420 is about 522.2638234216.

The spelling of 142452420 in words is "one hundred forty-two million, four hundred fifty-two thousand, four hundred twenty".