42038901 has 6 divisors (see below), whose sum is σ = 60722870. Its totient is φ = 28025928.

The previous prime is 42038897. The next prime is 42038903. The reversal of 42038901 is 10983024.

42038901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34503876 + 7535025 = 5874^2 + 2745^2 .

It is not a de Polignac number, because 42038901 - 2² = 42038897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42038903) 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 5 ways as a sum of consecutive naturals, for example, 2335486 + ... + 2335503.

Almost surely, 2^42038901 is an apocalyptic number.

It is an amenable number.

42038901 is a deficient number, since it is larger than the sum of its proper divisors (18683969).

42038901 is a wasteful number, since it uses less digits than its factorization.

42038901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4670995 (or 4670992 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 42038901 is about 6483.7412810815. The cubic root of 42038901 is about 347.7099495570.

The spelling of 42038901 in words is "forty-two million, thirty-eight thousand, nine hundred one".