42029249 has 4 divisors (see below), whose sum is σ = 42132420. Its totient is φ = 41926080.

The previous prime is 42029203. The next prime is 42029261. The reversal of 42029249 is 94292024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40233649 + 1795600 = 6343^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 42029249 - 2²⁴ = 25252033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42020249) 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, 50972 + ... + 51789.

It is an arithmetic number, because the mean of its divisors is an integer number (10533105).

Almost surely, 2^42029249 is an apocalyptic number.

It is an amenable number.

42029249 is a deficient number, since it is larger than the sum of its proper divisors (103171).

42029249 is a wasteful number, since it uses less digits than its factorization.

42029249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103170.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 42029249 is about 6482.9969150077. The cubic root of 42029249 is about 347.6833364817.

The spelling of 42029249 in words is "forty-two million, twenty-nine thousand, two hundred forty-nine".