42690513 has 8 divisors (see below), whose sum is σ = 57473728. Its totient is φ = 28183824.

The previous prime is 42690509. The next prime is 42690517. The reversal of 42690513 is 31509624.

It is an interprime number because it is at equal distance from previous prime (42690509) and next prime (42690517).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42690513 - 2² = 42690509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42690517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68770 + ... + 69387.

It is an arithmetic number, because the mean of its divisors is an integer number (7184216).

Almost surely, 2^42690513 is an apocalyptic number.

It is an amenable number.

42690513 is a deficient number, since it is larger than the sum of its proper divisors (14783215).

42690513 is a wasteful number, since it uses less digits than its factorization.

42690513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138263.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 42690513 is about 6533.7977470993. The cubic root of 42690513 is about 349.4972728046.

The spelling of 42690513 in words is "forty-two million, six hundred ninety thousand, five hundred thirteen".