7640450 has 12 divisors (see below), whose sum is σ = 14211330. Its totient is φ = 3056160.

The previous prime is 7640443. The next prime is 7640453. The reversal of 7640450 is 540467.

It can be written as a sum of positive squares in 3 ways, for example, as 5058001 + 2582449 = 2249^2 + 1607^2 .

It is not an unprimeable number, because it can be changed into a prime (7640453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76355 + ... + 76454.

Almost surely, 2^7640450 is an apocalyptic number.

7640450 is a deficient number, since it is larger than the sum of its proper divisors (6570880).

7640450 is a wasteful number, since it uses less digits than its factorization.

7640450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152821 (or 152816 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 7640450 is about 2764.1363931615. The cubic root of 7640450 is about 196.9577069146.

The spelling of 7640450 in words is "seven million, six hundred forty thousand, four hundred fifty".