42774912 has 64 divisors (see below), whose sum is σ = 126255600. Its totient is φ = 14257152.

The previous prime is 42774889. The next prime is 42774929. The reversal of 42774912 is 21947724.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2733 + ... + 9644.

Almost surely, 2^42774912 is an apocalyptic number.

It is an amenable number.

42774912 is an abundant number, since it is smaller than the sum of its proper divisors (83480688).

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

42774912 is a wasteful number, since it uses less digits than its factorization.

42774912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12400 (or 12382 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 42774912 is about 6540.2532061075. The cubic root of 42774912 is about 349.7274395008.

The spelling of 42774912 in words is "forty-two million, seven hundred seventy-four thousand, nine hundred twelve".