1520423452 has 12 divisors (see below), whose sum is σ = 2661020320. Its totient is φ = 760131936.

The previous prime is 1520423431. The next prime is 1520423461. The reversal of 1520423452 is 2543240251.

It is a self number, because there is not a number n which added to its sum of digits gives 1520423452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50824 + ... + 74992.

Almost surely, 2^1520423452 is an apocalyptic number.

It is an amenable number.

1520423452 is a deficient number, since it is larger than the sum of its proper divisors (1140596868).

1520423452 is a wasteful number, since it uses less digits than its factorization.

1520423452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39900 (or 39898 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1520423452 is about 38992.6076583755. The cubic root of 1520423452 is about 1149.8861770143.

It can be divided in two parts, 1520423 and 452, that added together give a cube (1520875 = 115³).

The spelling of 1520423452 in words is "one billion, five hundred twenty million, four hundred twenty-three thousand, four hundred fifty-two".