523013402 has 8 divisors (see below), whose sum is σ = 788585556. Its totient is φ = 260151552.

The previous prime is 523013363. The next prime is 523013419. The reversal of 523013402 is 204310325.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 516607441 + 6405961 = 22729^2 + 2531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×523013402² = 547086037343227208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677093 + ... + 677864.

Almost surely, 2^523013402 is an apocalyptic number.

523013402 is a deficient number, since it is larger than the sum of its proper divisors (265572154).

523013402 is a wasteful number, since it uses less digits than its factorization.

523013402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355152.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 523013402 is about 22869.4862644529. The cubic root of 523013402 is about 805.6955022166.

Adding to 523013402 its reverse (204310325), we get a palindrome (727323727).

The spelling of 523013402 in words is "five hundred twenty-three million, thirteen thousand, four hundred two".