342532540 has 72 divisors (see below), whose sum is σ = 841558032. Its totient is φ = 116766720.

The previous prime is 342532523. The next prime is 342532579. The reversal of 342532540 is 45235243.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 342532499 and 342532508.

It is a congruent number.

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, 188235 + ... + 190045.

It is an arithmetic number, because the mean of its divisors is an integer number (11688306).

Almost surely, 2^342532540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342532540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420779016).

342532540 is an abundant number, since it is smaller than the sum of its proper divisors (499025492).

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

342532540 is a wasteful number, since it uses less digits than its factorization.

342532540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 342532540 is about 18507.6346408719. The cubic root of 342532540 is about 699.6818554277.

Adding to 342532540 its reverse (45235243), we get a palindrome (387767783).

The spelling of 342532540 in words is "three hundred forty-two million, five hundred thirty-two thousand, five hundred forty".