142407400 has 96 divisors (see below), whose sum is σ = 351093600. Its totient is φ = 53625600.

The previous prime is 142407389. The next prime is 142407401. The reversal of 142407400 is 4704241.

It is not an unprimeable number, because it can be changed into a prime (142407401) 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, 249115 + ... + 249685.

It is an arithmetic number, because the mean of its divisors is an integer number (3657225).

Almost surely, 2^142407400 is an apocalyptic number.

142407400 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 142407400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175546800).

142407400 is an abundant number, since it is smaller than the sum of its proper divisors (208686200).

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

142407400 is a wasteful number, since it uses less digits than its factorization.

142407400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 142407400 is about 11933.4571688174. The cubic root of 142407400 is about 522.2087996818.

The spelling of 142407400 in words is "one hundred forty-two million, four hundred seven thousand, four hundred".