905254542 has 20 divisors (see below), whose sum is σ = 2028441096. Its totient is φ = 301751460.

The previous prime is 905254501. The next prime is 905254547. The reversal of 905254542 is 245452509.

905254542 is a `hidden beast` number, since 90 + 5 + 25 + 4 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 905254497 and 905254506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905254547) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 2793834 + ... + 2794157.

Almost surely, 2^905254542 is an apocalyptic number.

905254542 is an abundant number, since it is smaller than the sum of its proper divisors (1123186554).

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

905254542 is a wasteful number, since it uses less digits than its factorization.

905254542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5588005 (or 5587996 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 905254542 is about 30087.4482467357. The cubic root of 905254542 is about 967.3647043549.

The spelling of 905254542 in words is "nine hundred five million, two hundred fifty-four thousand, five hundred forty-two".