42529784 has 32 divisors (see below), whose sum is σ = 92113200. Its totient is φ = 18193920.

The previous prime is 42529777. The next prime is 42529789. The reversal of 42529784 is 48792524.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42529789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12719 + ... + 15710.

Almost surely, 2^42529784 is an apocalyptic number.

42529784 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42529784 is an abundant number, since it is smaller than the sum of its proper divisors (49583416).

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

42529784 is a wasteful number, since it uses less digits than its factorization.

42529784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28463 (or 28459 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 42529784 is about 6521.4863336512. The cubic root of 42529784 is about 349.0581042439.

The spelling of 42529784 in words is "forty-two million, five hundred twenty-nine thousand, seven hundred eighty-four".