42151244 has 12 divisors (see below), whose sum is σ = 74974368. Its totient is φ = 20730000.

The previous prime is 42151231. The next prime is 42151261. The reversal of 42151244 is 44215124.

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 3 ways as a sum of consecutive naturals, for example, 86132 + ... + 86619.

It is an arithmetic number, because the mean of its divisors is an integer number (6247864).

Almost surely, 2^42151244 is an apocalyptic number.

It is an amenable number.

42151244 is a deficient number, since it is larger than the sum of its proper divisors (32823124).

42151244 is a wasteful number, since it uses less digits than its factorization.

42151244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172816 (or 172814 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 42151244 is about 6492.3989402993. The cubic root of 42151244 is about 348.0194092315.

Adding to 42151244 its reverse (44215124), we get a palindrome (86366368).

The spelling of 42151244 in words is "forty-two million, one hundred fifty-one thousand, two hundred forty-four".