1520423332 has 6 divisors (see below), whose sum is σ = 2660740838. Its totient is φ = 760211664.

The previous prime is 1520423321. The next prime is 1520423347. The reversal of 1520423332 is 2333240251.

It can be written as a sum of positive squares in only one way, i.e., 857669796 + 662753536 = 29286^2 + 25744^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1520423297 and 1520423306.

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 as a sum of consecutive naturals, namely, 190052913 + ... + 190052920.

Almost surely, 2^1520423332 is an apocalyptic number.

It is an amenable number.

1520423332 is a deficient number, since it is larger than the sum of its proper divisors (1140317506).

1520423332 is a wasteful number, since it uses less digits than its factorization.

1520423332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380105837 (or 380105835 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1520423332 is about 38992.6061196222. The cubic root of 1520423332 is about 1149.8861467626.

Adding to 1520423332 its reverse (2333240251), we get a palindrome (3853663583).

The spelling of 1520423332 in words is "one billion, five hundred twenty million, four hundred twenty-three thousand, three hundred thirty-two".