20142535442 has 16 divisors (see below), whose sum is σ = 31993719552. Its totient is φ = 9478059840.

The previous prime is 20142535409. The next prime is 20142535489. The reversal of 20142535442 is 24453524102.

It is a super-2 number, since 2×20142535442² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20142535399 and 20142535408.

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, 764663 + ... + 790565.

It is an arithmetic number, because the mean of its divisors is an integer number (1999607472).

Almost surely, 2^20142535442 is an apocalyptic number.

20142535442 is a deficient number, since it is larger than the sum of its proper divisors (11851184110).

20142535442 is a wasteful number, since it uses less digits than its factorization.

20142535442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48793.

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 20142535442 in words is "twenty billion, one hundred forty-two million, five hundred thirty-five thousand, four hundred forty-two".