42707655 has 40 divisors (see below), whose sum is σ = 81073872. Its totient is φ = 21434112.

The previous prime is 42707653. The next prime is 42707663. The reversal of 42707655 is 55670724.

It is not a de Polignac number, because 42707655 - 2¹ = 42707653 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42707653) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3784 + ... + 9986.

Almost surely, 2^42707655 is an apocalyptic number.

42707655 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42707655 is a deficient number, since it is larger than the sum of its proper divisors (38366217).

42707655 is a wasteful number, since it uses less digits than its factorization.

42707655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237 (or 6228 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 42707655 is about 6535.1094099487. The cubic root of 42707655 is about 349.5440457300.

The spelling of 42707655 in words is "forty-two million, seven hundred seven thousand, six hundred fifty-five".