142403424 has 48 divisors (see below), whose sum is σ = 395802288. Its totient is φ = 44675072.

The previous prime is 142403413. The next prime is 142403431. The reversal of 142403424 is 424304241.

It is a happy number.

142403424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 142403394 and 142403403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41997 + ... + 45260.

It is an arithmetic number, because the mean of its divisors is an integer number (8245881).

Almost surely, 2^142403424 is an apocalyptic number.

It is an amenable number.

142403424 is an abundant number, since it is smaller than the sum of its proper divisors (253398864).

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

142403424 is a wasteful number, since it uses less digits than its factorization.

142403424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87287 (or 87279 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 142403424 is about 11933.2905772046. The cubic root of 142403424 is about 522.2039396312.

Adding to 142403424 its reverse (424304241), we get a palindrome (566707665).

The spelling of 142403424 in words is "one hundred forty-two million, four hundred three thousand, four hundred twenty-four".