542342634 has 16 divisors (see below), whose sum is σ = 1084946880. Its totient is φ = 180737280.

The previous prime is 542342621. The next prime is 542342651. The reversal of 542342634 is 436243245.

It is a junction number, because it is equal to n+sod(n) for n = 542342595 and 542342604.

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, 25299 + ... + 41529.

It is an arithmetic number, because the mean of its divisors is an integer number (67809180).

Almost surely, 2^542342634 is an apocalyptic number.

542342634 is an abundant number, since it is smaller than the sum of its proper divisors (542604246).

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

542342634 is a wasteful number, since it uses less digits than its factorization.

542342634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21805.

The product of its digits is 69120, while the sum is 33.

The square root of 542342634 is about 23288.2509862806. The cubic root of 542342634 is about 815.5011578857.

Adding to 542342634 its reverse (436243245), we get a palindrome (978585879).

The spelling of 542342634 in words is "five hundred forty-two million, three hundred forty-two thousand, six hundred thirty-four".