142104400 has 30 divisors (see below), whose sum is σ = 341406782. Its totient is φ = 56841600.

The previous prime is 142104397. The next prime is 142104407. The reversal of 142104400 is 4401241.

It can be written as a sum of positive squares in 3 ways, for example, as 1065024 + 141039376 = 1032^2 + 11876^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142104407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177231 + ... + 178030.

Almost surely, 2^142104400 is an apocalyptic number.

142104400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142104400 is an abundant number, since it is smaller than the sum of its proper divisors (199302382).

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

142104400 is a wasteful number, since it uses less digits than its factorization.

142104400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355279 (or 355268 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 142104400 is about 11920.7550096460. The cubic root of 142104400 is about 521.8381690813.

Adding to 142104400 its reverse (4401241), we get a palindrome (146505641).

The spelling of 142104400 in words is "one hundred forty-two million, one hundred four thousand, four hundred".