142040034 has 16 divisors (see below), whose sum is σ = 315644640. Its totient is φ = 47346660.

The previous prime is 142040033. The next prime is 142040071. The reversal of 142040034 is 430040241.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 142039989 and 142040016.

It is not an unprimeable number, because it can be changed into a prime (142040033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1315132 + ... + 1315239.

It is an arithmetic number, because the mean of its divisors is an integer number (19727790).

Almost surely, 2^142040034 is an apocalyptic number.

142040034 is an abundant number, since it is smaller than the sum of its proper divisors (173604606).

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

142040034 is a wasteful number, since it uses less digits than its factorization.

142040034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630382 (or 2630376 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 142040034 is about 11918.0549587590. The cubic root of 142040034 is about 521.7593685465.

Adding to 142040034 its reverse (430040241), we get a palindrome (572080275).

The spelling of 142040034 in words is "one hundred forty-two million, forty thousand, thirty-four".