142209430 has 16 divisors (see below), whose sum is σ = 279247824. Its totient is φ = 51712480.

The previous prime is 142209421. The next prime is 142209449. The reversal of 142209430 is 34902241.

It is a junction number, because it is equal to n+sod(n) for n = 142209395 and 142209404.

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, 646297 + ... + 646516.

It is an arithmetic number, because the mean of its divisors is an integer number (17452989).

Almost surely, 2^142209430 is an apocalyptic number.

142209430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142209430 is a deficient number, since it is larger than the sum of its proper divisors (137038394).

142209430 is a wasteful number, since it uses less digits than its factorization.

142209430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292831.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 142209430 is about 11925.1595377169. The cubic root of 142209430 is about 521.9667017314.

The spelling of 142209430 in words is "one hundred forty-two million, two hundred nine thousand, four hundred thirty".