490143652 has 6 divisors (see below), whose sum is σ = 857751398. Its totient is φ = 245071824.

The previous prime is 490143649. The next prime is 490143653. The reversal of 490143652 is 256341094.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 258373476 + 231770176 = 16074^2 + 15224^2 .

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (490143653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61267953 + ... + 61267960.

Almost surely, 2^490143652 is an apocalyptic number.

It is an amenable number.

490143652 is a deficient number, since it is larger than the sum of its proper divisors (367607746).

490143652 is a wasteful number, since it uses less digits than its factorization.

490143652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122535917 (or 122535915 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 490143652 is about 22139.1881513302. The cubic root of 490143652 is about 788.4505505738.

The spelling of 490143652 in words is "four hundred ninety million, one hundred forty-three thousand, six hundred fifty-two".