42690380 has 12 divisors (see below), whose sum is σ = 89649840. Its totient is φ = 17076144.

The previous prime is 42690367. The next prime is 42690413. The reversal of 42690380 is 8309624.

42690380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067240 + ... + 1067279.

It is an arithmetic number, because the mean of its divisors is an integer number (7470820).

Almost surely, 2^42690380 is an apocalyptic number.

It is an amenable number.

42690380 is an abundant number, since it is smaller than the sum of its proper divisors (46959460).

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

42690380 is a wasteful number, since it uses less digits than its factorization.

42690380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134528 (or 2134526 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 42690380 is about 6533.7875692434. The cubic root of 42690380 is about 349.4969098576.

The spelling of 42690380 in words is "forty-two million, six hundred ninety thousand, three hundred eighty".