42791748 has 12 divisors (see below), whose sum is σ = 99847440. Its totient is φ = 14263912.

The previous prime is 42791711. The next prime is 42791759. The reversal of 42791748 is 84719724.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×42791748² = 3662267393791008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782978 + ... + 1783001.

It is an arithmetic number, because the mean of its divisors is an integer number (8320620).

Almost surely, 2^42791748 is an apocalyptic number.

It is an amenable number.

42791748 is an abundant number, since it is smaller than the sum of its proper divisors (57055692).

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

42791748 is a wasteful number, since it uses less digits than its factorization.

42791748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565986 (or 3565984 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 42791748 is about 6541.5401856138. The cubic root of 42791748 is about 349.7733171627.

The spelling of 42791748 in words is "forty-two million, seven hundred ninety-one thousand, seven hundred forty-eight".