42502072 has 16 divisors (see below), whose sum is σ = 79977240. Its totient is φ = 21174816.

The previous prime is 42502067. The next prime is 42502099. The reversal of 42502072 is 27020524.

It is a super-2 number, since 2×42502072² = 3612852248586368, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 7123 + ... + 11650.

Almost surely, 2^42502072 is an apocalyptic number.

It is an amenable number.

42502072 is a deficient number, since it is larger than the sum of its proper divisors (37475168).

42502072 is a wasteful number, since it uses less digits than its factorization.

42502072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19062 (or 19058 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 42502072 is about 6519.3613184115. The cubic root of 42502072 is about 348.9822734652.

Adding to 42502072 its reverse (27020524), we get a palindrome (69522596).

The spelling of 42502072 in words is "forty-two million, five hundred two thousand, seventy-two".