42253844 has 6 divisors (see below), whose sum is σ = 73944234. Its totient is φ = 21126920.

The previous prime is 42253831. The next prime is 42253859. The reversal of 42253844 is 44835224.

It can be written as a sum of positive squares in only one way, i.e., 42250000 + 3844 = 6500^2 + 62^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42253844.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5281727 + ... + 5281734.

It is an arithmetic number, because the mean of its divisors is an integer number (12324039).

Almost surely, 2^42253844 is an apocalyptic number.

It is an amenable number.

42253844 is a deficient number, since it is larger than the sum of its proper divisors (31690390).

42253844 is a wasteful number, since it uses less digits than its factorization.

42253844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10563465 (or 10563463 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 42253844 is about 6500.2956855823. The cubic root of 42253844 is about 348.3015508396.

It can be divided in two parts, 4225 and 3844, that multiplied together give a square (16240900 = 4030²).

The spelling of 42253844 in words is "forty-two million, two hundred fifty-three thousand, eight hundred forty-four".