42690415 has 32 divisors (see below), whose sum is σ = 56033280. Its totient is φ = 31135104.

The previous prime is 42690413. The next prime is 42690449. The reversal of 42690415 is 51409624.

It is a cyclic number.

It is not a de Polignac number, because 42690415 - 2¹ = 42690413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42690413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336082 + ... + 336208.

It is an arithmetic number, because the mean of its divisors is an integer number (1751040).

Almost surely, 2^42690415 is an apocalyptic number.

42690415 is a deficient number, since it is larger than the sum of its proper divisors (13342865).

42690415 is a wasteful number, since it uses less digits than its factorization.

42690415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 42690415 is about 6533.7902476281. The cubic root of 42690415 is about 349.4970053700.

The spelling of 42690415 in words is "forty-two million, six hundred ninety thousand, four hundred fifteen".