42776748 has 72 divisors (see below), whose sum is σ = 128174592. Its totient is φ = 12219984.

The previous prime is 42776737. The next prime is 42776749. The reversal of 42776748 is 84767724.

It is not an unprimeable number, because it can be changed into a prime (42776749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3661 + ... + 9947.

Almost surely, 2^42776748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42776748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64087296).

42776748 is an abundant number, since it is smaller than the sum of its proper divisors (85397844).

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

42776748 is a wasteful number, since it uses less digits than its factorization.

42776748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313 (or 6299 counting only the distinct ones).

The product of its digits is 526848, while the sum is 45.

The square root of 42776748 is about 6540.3935661396. The cubic root of 42776748 is about 349.7324431378.

It can be divided in two parts, 4277 and 6748, that added together give a square (11025 = 105²).

The spelling of 42776748 in words is "forty-two million, seven hundred seventy-six thousand, seven hundred forty-eight".