42951438 has 32 divisors (see below), whose sum is σ = 100473600. Its totient is φ = 13563288.

The previous prime is 42951437. The next prime is 42951439. The reversal of 42951438 is 83415924.

42951438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42951437) and next prime (42951439).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42951437) 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 15 ways as a sum of consecutive naturals, for example, 19906 + ... + 21957.

It is an arithmetic number, because the mean of its divisors is an integer number (3139800).

Almost surely, 2^42951438 is an apocalyptic number.

42951438 is an abundant number, since it is smaller than the sum of its proper divisors (57522162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42951438 is a wasteful number, since it uses less digits than its factorization.

42951438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41893 (or 41887 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 42951438 is about 6553.7346604818. The cubic root of 42951438 is about 350.2078710751.

The spelling of 42951438 in words is "forty-two million, nine hundred fifty-one thousand, four hundred thirty-eight".