42254190 has 128 divisors (see below), whose sum is σ = 126282240. Its totient is φ = 9964800.

The previous prime is 42254183. The next prime is 42254213. The reversal of 42254190 is 9145224.

42254190 is a `hidden beast` number, since 422 + 54 + 190 = 666.

It is a super-2 number, since 2×42254190² = 3570833145112200, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121597 + ... + 121943.

It is an arithmetic number, because the mean of its divisors is an integer number (986580).

Almost surely, 2^42254190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42254190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63141120).

42254190 is an abundant number, since it is smaller than the sum of its proper divisors (84028050).

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

42254190 is a wasteful number, since it uses less digits than its factorization.

42254190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 42254190 is about 6500.3222997018. The cubic root of 42254190 is about 348.3025015381.

The spelling of 42254190 in words is "forty-two million, two hundred fifty-four thousand, one hundred ninety".