42784074 has 24 divisors (see below), whose sum is σ = 94961412. Its totient is φ = 13913280.

The previous prime is 42784069. The next prime is 42784127. The reversal of 42784074 is 47048724.

It can be written as a sum of positive squares in 2 ways, for example, as 33143049 + 9641025 = 5757^2 + 3105^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28249 + ... + 29724.

Almost surely, 2^42784074 is an apocalyptic number.

42784074 is an abundant number, since it is smaller than the sum of its proper divisors (52177338).

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

42784074 is a wasteful number, since it uses less digits than its factorization.

42784074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58022 (or 58019 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 42784074 is about 6540.9536002023. The cubic root of 42784074 is about 349.7524072051.

The spelling of 42784074 in words is "forty-two million, seven hundred eighty-four thousand, seventy-four".