142400402 has 8 divisors (see below), whose sum is σ = 224842800. Its totient is φ = 67452804.

The previous prime is 142400351. The next prime is 142400417. The reversal of 142400402 is 204004241.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1873652 + ... + 1873727.

It is an arithmetic number, because the mean of its divisors is an integer number (28105350).

Almost surely, 2^142400402 is an apocalyptic number.

142400402 is a deficient number, since it is larger than the sum of its proper divisors (82442398).

142400402 is a wasteful number, since it uses less digits than its factorization.

142400402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747400.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 142400402 is about 11933.1639559674. The cubic root of 142400402 is about 522.2002456389.

Adding to 142400402 its reverse (204004241), we get a palindrome (346404643).

The spelling of 142400402 in words is "one hundred forty-two million, four hundred thousand, four hundred two".