42531038 has 8 divisors (see below), whose sum is σ = 69596280. Its totient is φ = 19332280.

The previous prime is 42531031. The next prime is 42531061. The reversal of 42531038 is 83013524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42530998 and 42531016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42531031) 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, 966593 + ... + 966636.

It is an arithmetic number, because the mean of its divisors is an integer number (8699535).

Almost surely, 2^42531038 is an apocalyptic number.

42531038 is a deficient number, since it is larger than the sum of its proper divisors (27065242).

42531038 is a wasteful number, since it uses less digits than its factorization.

42531038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933242.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 42531038 is about 6521.5824766693. The cubic root of 42531038 is about 349.0615348951.

The spelling of 42531038 in words is "forty-two million, five hundred thirty-one thousand, thirty-eight".