142400734 has 8 divisors (see below), whose sum is σ = 244115568. Its totient is φ = 61028880.

The previous prime is 142400729. The next prime is 142400737. The reversal of 142400734 is 437004241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142400699 and 142400708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142400737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5085727 + ... + 5085754.

It is an arithmetic number, because the mean of its divisors is an integer number (30514446).

Almost surely, 2^142400734 is an apocalyptic number.

142400734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142400734 is a deficient number, since it is larger than the sum of its proper divisors (101714834).

142400734 is a wasteful number, since it uses less digits than its factorization.

142400734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10171490.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 142400734 is about 11933.1778667713. The cubic root of 142400734 is about 522.2006514672.

Adding to 142400734 its reverse (437004241), we get a palindrome (579404975).

The spelling of 142400734 in words is "one hundred forty-two million, four hundred thousand, seven hundred thirty-four".