42686790 has 32 divisors (see below), whose sum is σ = 103511520. Its totient is φ = 11265024.

The previous prime is 42686759. The next prime is 42686801. The reversal of 42686790 is 9768624.

It is a super-3 number, since 3×42686790³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4425 + ... + 10244.

It is an arithmetic number, because the mean of its divisors is an integer number (3234735).

Almost surely, 2^42686790 is an apocalyptic number.

42686790 is an abundant number, since it is smaller than the sum of its proper divisors (60824730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42686790 is a wasteful number, since it uses less digits than its factorization.

42686790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14776.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 42686790 is about 6533.5128376701. The cubic root of 42686790 is about 349.4871127317.

The spelling of 42686790 in words is "forty-two million, six hundred eighty-six thousand, seven hundred ninety".