42053929 has 4 divisors (see below), whose sum is σ = 42066900. Its totient is φ = 42040960.

The previous prime is 42053927. The next prime is 42053951. The reversal of 42053929 is 92935024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 39980329 + 2073600 = 6323^2 + 1440^2 .

It is a cyclic number.

It is not a de Polignac number, because 42053929 - 2¹ = 42053927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42053894 and 42053903.

It is not an unprimeable number, because it can be changed into a prime (42053923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3189 + ... + 9709.

It is an arithmetic number, because the mean of its divisors is an integer number (10516725).

Almost surely, 2^42053929 is an apocalyptic number.

It is an amenable number.

42053929 is a deficient number, since it is larger than the sum of its proper divisors (12971).

42053929 is an equidigital number, since it uses as much as digits as its factorization.

42053929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12970.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 42053929 is about 6484.9000763312. The cubic root of 42053929 is about 347.7513775556.

The spelling of 42053929 in words is "forty-two million, fifty-three thousand, nine hundred twenty-nine".