42151624 has 8 divisors (see below), whose sum is σ = 79034310. Its totient is φ = 21075808.

The previous prime is 42151601. The next prime is 42151631. The reversal of 42151624 is 42615124.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 35022724 + 7128900 = 5918^2 + 2670^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 2634469 + ... + 2634484.

Almost surely, 2^42151624 is an apocalyptic number.

It is an amenable number.

42151624 is a deficient number, since it is larger than the sum of its proper divisors (36882686).

42151624 is a wasteful number, since it uses less digits than its factorization.

42151624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268959 (or 5268955 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 42151624 is about 6492.4282052249. The cubic root of 42151624 is about 348.0204550446.

Adding to 42151624 its reverse (42615124), we get a palindrome (84766748).

The spelling of 42151624 in words is "forty-two million, one hundred fifty-one thousand, six hundred twenty-four".