42529401 has 16 divisors (see below), whose sum is σ = 63128320. Its totient is φ = 28298160.

The previous prime is 42529381. The next prime is 42529439. The reversal of 42529401 is 10492524.

42529401 is a `hidden beast` number, since 4 + 252 + 9 + 401 = 666.

42529401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42529401 - 2⁶ = 42529337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42529441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16656 + ... + 19038.

It is an arithmetic number, because the mean of its divisors is an integer number (3945520).

Almost surely, 2^42529401 is an apocalyptic number.

It is an amenable number.

42529401 is a deficient number, since it is larger than the sum of its proper divisors (20598919).

42529401 is a wasteful number, since it uses less digits than its factorization.

42529401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053 (or 3047 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 42529401 is about 6521.4569691136. The cubic root of 42529401 is about 349.0570564319.

The spelling of 42529401 in words is "forty-two million, five hundred twenty-nine thousand, four hundred one".