531542402 has 16 divisors (see below), whose sum is σ = 805788000. Its totient is φ = 262952928.

The previous prime is 531542369. The next prime is 531542441. The reversal of 531542402 is 204245135.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319958 + ... + 321614.

It is an arithmetic number, because the mean of its divisors is an integer number (50361750).

Almost surely, 2^531542402 is an apocalyptic number.

531542402 is a deficient number, since it is larger than the sum of its proper divisors (274245598).

531542402 is a wasteful number, since it uses less digits than its factorization.

531542402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 531542402 is about 23055.2033606299. The cubic root of 531542402 is about 810.0515142770.

Adding to 531542402 its reverse (204245135), we get a palindrome (735787537).

The spelling of 531542402 in words is "five hundred thirty-one million, five hundred forty-two thousand, four hundred two".