42038445 has 16 divisors (see below), whose sum is σ = 68693760. Its totient is φ = 21943104.

The previous prime is 42038383. The next prime is 42038453. The reversal of 42038445 is 54483024.

It is not a de Polignac number, because 42038445 - 2¹³ = 42030253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29110 + ... + 30519.

It is an arithmetic number, because the mean of its divisors is an integer number (4293360).

Almost surely, 2^42038445 is an apocalyptic number.

It is an amenable number.

42038445 is a deficient number, since it is larger than the sum of its proper divisors (26655315).

42038445 is a wasteful number, since it uses less digits than its factorization.

42038445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59684.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 42038445 is about 6483.7061161037. The cubic root of 42038445 is about 347.7086923380.

The spelling of 42038445 in words is "forty-two million, thirty-eight thousand, four hundred forty-five".