42090366 has 16 divisors (see below), whose sum is σ = 85561488. Its totient is φ = 13800000.

The previous prime is 42090361. The next prime is 42090371. The reversal of 42090366 is 66309024.

It is an interprime number because it is at equal distance from previous prime (42090361) and next prime (42090371).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42090361) 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, 57135 + ... + 57866.

It is an arithmetic number, because the mean of its divisors is an integer number (5347593).

Almost surely, 2^42090366 is an apocalyptic number.

42090366 is an abundant number, since it is smaller than the sum of its proper divisors (43471122).

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

42090366 is a wasteful number, since it uses less digits than its factorization.

42090366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115067.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 42090366 is about 6487.7088405692. The cubic root of 42090366 is about 347.8517832289.

The spelling of 42090366 in words is "forty-two million, ninety thousand, three hundred sixty-six".