42239450 has 48 divisors (see below), whose sum is σ = 87181920. Its totient is φ = 15096000.

The previous prime is 42239443. The next prime is 42239473. The reversal of 42239450 is 5493224.

It is a super-2 number, since 2×42239450² = 3568342272605000, which contains 22 as substring.

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 in 23 ways as a sum of consecutive naturals, for example, 32921 + ... + 34179.

It is an arithmetic number, because the mean of its divisors is an integer number (1816290).

Almost surely, 2^42239450 is an apocalyptic number.

42239450 is an abundant number, since it is smaller than the sum of its proper divisors (44942470).

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

42239450 is a wasteful number, since it uses less digits than its factorization.

42239450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 42239450 is about 6499.1884108710. The cubic root of 42239450 is about 348.2619960800.

The spelling of 42239450 in words is "forty-two million, two hundred thirty-nine thousand, four hundred fifty".