42938651 has 24 divisors (see below), whose sum is σ = 55691280. Its totient is φ = 32804352.

The previous prime is 42938579. The next prime is 42938657. The reversal of 42938651 is 15683924.

It is a happy number.

42938651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42938651 - 2²² = 38744347 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (42938657) 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 23 ways as a sum of consecutive naturals, for example, 14471 + ... + 17183.

It is an arithmetic number, because the mean of its divisors is an integer number (2320470).

Almost surely, 2^42938651 is an apocalyptic number.

42938651 is a deficient number, since it is larger than the sum of its proper divisors (12752629).

42938651 is a wasteful number, since it uses less digits than its factorization.

42938651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763 (or 2756 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 42938651 is about 6552.7590372300. The cubic root of 42938651 is about 350.1731143614.

The spelling of 42938651 in words is "forty-two million, nine hundred thirty-eight thousand, six hundred fifty-one".