425340142 has 4 divisors (see below), whose sum is σ = 638010216. Its totient is φ = 212670070.

The previous prime is 425340131. The next prime is 425340143. The reversal of 425340142 is 241043524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425340143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106335034 + ... + 106335037.

It is an arithmetic number, because the mean of its divisors is an integer number (159502554).

Almost surely, 2^425340142 is an apocalyptic number.

425340142 is a deficient number, since it is larger than the sum of its proper divisors (212670074).

425340142 is a wasteful number, since it uses less digits than its factorization.

425340142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212670073.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 425340142 is about 20623.7761333855. The cubic root of 425340142 is about 752.0478209649.

Adding to 425340142 its reverse (241043524), we get a palindrome (666383666).

The spelling of 425340142 in words is "four hundred twenty-five million, three hundred forty thousand, one hundred forty-two".