39420134540 has 48 divisors (see below), whose sum is σ = 84721321440. Its totient is φ = 15402984960.

The previous prime is 39420134513. The next prime is 39420134557. The reversal of 39420134540 is 4543102493.

It is a self number, because there is not a number n which added to its sum of digits gives 39420134540.

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 15 ways as a sum of consecutive naturals, for example, 14330 + ... + 281150.

It is an arithmetic number, because the mean of its divisors is an integer number (1765027530).

Almost surely, 2^39420134540 is an apocalyptic number.

It is an amenable number.

39420134540 is an abundant number, since it is smaller than the sum of its proper divisors (45301186900).

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

39420134540 is a wasteful number, since it uses less digits than its factorization.

39420134540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267002 (or 267000 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 39420134540 in words is "thirty-nine billion, four hundred twenty million, one hundred thirty-four thousand, five hundred forty".