142401234 has 48 divisors (see below), whose sum is σ = 307055808. Its totient is φ = 43911648.

The previous prime is 142401229. The next prime is 142401263. The reversal of 142401234 is 432104241.

It is a super-2 number, since 2×142401234² = 40556222889445512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142401234.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 852619 + ... + 852785.

It is an arithmetic number, because the mean of its divisors is an integer number (6396996).

Almost surely, 2^142401234 is an apocalyptic number.

142401234 is an abundant number, since it is smaller than the sum of its proper divisors (164654574).

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

142401234 is a wasteful number, since it uses less digits than its factorization.

142401234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142401234 is about 11933.1988167465. The cubic root of 142401234 is about 522.2012626533.

Adding to 142401234 its reverse (432104241), we get a palindrome (574505475).

The spelling of 142401234 in words is "one hundred forty-two million, four hundred one thousand, two hundred thirty-four".