142055400 has 192 divisors, whose sum is σ = 491486400. Its totient is φ = 33730560.

The previous prime is 142055399. The next prime is 142055401. The reversal of 142055400 is 4550241.

It is an interprime number because it is at equal distance from previous prime (142055399) and next prime (142055401).

It is not an unprimeable number, because it can be changed into a prime (142055401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193434 + ... + 194166.

It is an arithmetic number, because the mean of its divisors is an integer number (2559825).

Almost surely, 2^142055400 is an apocalyptic number.

142055400 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 142055400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245743200).

142055400 is an abundant number, since it is smaller than the sum of its proper divisors (349431000).

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

142055400 is a wasteful number, since it uses less digits than its factorization.

142055400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 142055400 is about 11918.6995934959. The cubic root of 142055400 is about 521.7781826445.

The spelling of 142055400 in words is "one hundred forty-two million, fifty-five thousand, four hundred".