7532218 has 4 divisors (see below), whose sum is σ = 11298330. Its totient is φ = 3766108.

The previous prime is 7532209. The next prime is 7532221. The reversal of 7532218 is 8122357.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4549689 + 2982529 = 2133^2 + 1727^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1883053 + ... + 1883056.

Almost surely, 2^7532218 is an apocalyptic number.

7532218 is a deficient number, since it is larger than the sum of its proper divisors (3766112).

7532218 is a wasteful number, since it uses less digits than its factorization.

7532218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766111.

The product of its digits is 3360, while the sum is 28.

The square root of 7532218 is about 2744.4886591130. The cubic root of 7532218 is about 196.0232687910.

It can be divided in two parts, 7532 and 218, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 7532218 in words is "seven million, five hundred thirty-two thousand, two hundred eighteen".