342540140 has 36 divisors (see below), whose sum is σ = 764150016. Its totient is φ = 128954112.

The previous prime is 342540131. The next prime is 342540167. The reversal of 342540140 is 41045243.

It is a super-2 number, since 2×342540140² = 234667495022439200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23852 + ... + 35411.

Almost surely, 2^342540140 is an apocalyptic number.

It is an amenable number.

342540140 is an abundant number, since it is smaller than the sum of its proper divisors (421609876).

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

342540140 is a wasteful number, since it uses less digits than its factorization.

342540140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59306 (or 59287 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 342540140 is about 18507.8399604060. The cubic root of 342540140 is about 699.6870301601.

Adding to 342540140 its reverse (41045243), we get a palindrome (383585383).

The spelling of 342540140 in words is "three hundred forty-two million, five hundred forty thousand, one hundred forty".