40525235442 has 32 divisors (see below), whose sum is σ = 91532415360. Its totient is φ = 13286961360.

The previous prime is 40525235393. The next prime is 40525235447. The reversal of 40525235442 is 24453252504.

40525235442 is a `hidden beast` number, since 40 + 5 + 2 + 523 + 54 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 40525235397 and 40525235406.

It is not an unprimeable number, because it can be changed into a prime (40525235447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6148078 + ... + 6154665.

It is an arithmetic number, because the mean of its divisors is an integer number (2860387980).

Almost surely, 2^40525235442 is an apocalyptic number.

40525235442 is an abundant number, since it is smaller than the sum of its proper divisors (51007179918).

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

40525235442 is a wasteful number, since it uses less digits than its factorization.

40525235442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12302815 (or 12302809 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 40525235442 its reverse (24453252504), we get a palindrome (64978487946).

The spelling of 40525235442 in words is "forty billion, five hundred twenty-five million, two hundred thirty-five thousand, four hundred forty-two".