42774075 has 42 divisors (see below), whose sum is σ = 79557284. Its totient is φ = 22803120.

The previous prime is 42774049. The next prime is 42774097. The reversal of 42774075 is 57047724.

It is a happy number.

It is not a de Polignac number, because 42774075 - 2¹³ = 42765883 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 17052 + ... + 19398.

Almost surely, 2^42774075 is an apocalyptic number.

42774075 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42774075 is a deficient number, since it is larger than the sum of its proper divisors (36783209).

42774075 is an equidigital number, since it uses as much as digits as its factorization.

42774075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375 (or 2355 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 42774075 is about 6540.1892174462. The cubic root of 42774075 is about 349.7251583835.

The spelling of 42774075 in words is "forty-two million, seven hundred seventy-four thousand, seventy-five".