42774615 has 32 divisors (see below), whose sum is σ = 81896640. Its totient is φ = 21057408.

The previous prime is 42774593. The next prime is 42774647. The reversal of 42774615 is 51647724.

It is not a de Polignac number, because 42774615 - 2¹¹ = 42772567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42774615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10432 + ... + 13941.

It is an arithmetic number, because the mean of its divisors is an integer number (2559270).

Almost surely, 2^42774615 is an apocalyptic number.

42774615 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42774615 is a deficient number, since it is larger than the sum of its proper divisors (39122025).

42774615 is a wasteful number, since it uses less digits than its factorization.

42774615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24400 (or 24394 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 42774615 is about 6540.2305005252. The cubic root of 42774615 is about 349.7266300755.

The spelling of 42774615 in words is "forty-two million, seven hundred seventy-four thousand, six hundred fifteen".