42388951 has 8 divisors (see below), whose sum is σ = 46828800. Its totient is φ = 38046840.

The previous prime is 42388949. The next prime is 42388987. The reversal of 42388951 is 15988324.

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

It is a cyclic number.

It is not a de Polignac number, because 42388951 - 2¹ = 42388949 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 (42388921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23521 + ... + 25258.

It is an arithmetic number, because the mean of its divisors is an integer number (5853600).

Almost surely, 2^42388951 is an apocalyptic number.

42388951 is a deficient number, since it is larger than the sum of its proper divisors (4439849).

42388951 is a wasteful number, since it uses less digits than its factorization.

42388951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48869.

The product of its digits is 69120, while the sum is 40.

The square root of 42388951 is about 6510.6797648172. The cubic root of 42388951 is about 348.6723881883.

The spelling of 42388951 in words is "forty-two million, three hundred eighty-eight thousand, nine hundred fifty-one".