42774632 has 16 divisors (see below), whose sum is σ = 80333700. Its totient is φ = 21352320.

The previous prime is 42774593. The next prime is 42774647. The reversal of 42774632 is 23647724.

It can be written as a sum of positive squares in 2 ways, for example, as 41396356 + 1378276 = 6434^2 + 1174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42774592 and 42774601.

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, 1244 + ... + 9332.

Almost surely, 2^42774632 is an apocalyptic number.

It is an amenable number.

42774632 is a deficient number, since it is larger than the sum of its proper divisors (37559068).

42774632 is a wasteful number, since it uses less digits than its factorization.

42774632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756 (or 8752 counting only the distinct ones).

The product of its digits is 56448, while the sum is 35.

The square root of 42774632 is about 6540.2318001734. The cubic root of 42774632 is about 349.7266764064.

The spelling of 42774632 in words is "forty-two million, seven hundred seventy-four thousand, six hundred thirty-two".