42751408 has 40 divisors (see below), whose sum is σ = 94993920. Its totient is φ = 18258240.

The previous prime is 42751367. The next prime is 42751409. The reversal of 42751408 is 80415724.

It is a self number, because there is not a number n which added to its sum of digits gives 42751408.

It is not an unprimeable number, because it can be changed into a prime (42751409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46473 + ... + 47383.

It is an arithmetic number, because the mean of its divisors is an integer number (2374848).

Almost surely, 2^42751408 is an apocalyptic number.

It is an amenable number.

42751408 is an abundant number, since it is smaller than the sum of its proper divisors (52242512).

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

42751408 is a wasteful number, since it uses less digits than its factorization.

42751408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 42751408 is about 6538.4560868756. The cubic root of 42751408 is about 349.6633715742.

The spelling of 42751408 in words is "forty-two million, seven hundred fifty-one thousand, four hundred eight".