42246090 has 32 divisors (see below), whose sum is σ = 112656960. Its totient is φ = 11265552.

The previous prime is 42246079. The next prime is 42246103. The reversal of 42246090 is 9064224.

42246090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 77964 + ... + 78503.

It is an arithmetic number, because the mean of its divisors is an integer number (3520530).

Almost surely, 2^42246090 is an apocalyptic number.

42246090 is an abundant number, since it is smaller than the sum of its proper divisors (70410870).

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

42246090 is a wasteful number, since it uses less digits than its factorization.

42246090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156483 (or 156477 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42246090 is about 6499.6992238103. The cubic root of 42246090 is about 348.2802439383.

The spelling of 42246090 in words is "forty-two million, two hundred forty-six thousand, ninety".