1520350772 has 6 divisors (see below), whose sum is σ = 2660613858. Its totient is φ = 760175384.

The previous prime is 1520350771. The next prime is 1520350829. The reversal of 1520350772 is 2770530251.

It can be written as a sum of positive squares in only one way, i.e., 1360429456 + 159921316 = 36884^2 + 12646^2 .

It is a super-2 number, since 2×1520350772² = 4622932939841991968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520350771) by changing a digit.

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, 190043843 + ... + 190043850.

It is an arithmetic number, because the mean of its divisors is an integer number (443435643).

Almost surely, 2^1520350772 is an apocalyptic number.

It is an amenable number.

1520350772 is a deficient number, since it is larger than the sum of its proper divisors (1140263086).

1520350772 is a wasteful number, since it uses less digits than its factorization.

1520350772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380087697 (or 380087695 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 1520350772 is about 38991.6756757131. The cubic root of 1520350772 is about 1149.8678542550.

The spelling of 1520350772 in words is "one billion, five hundred twenty million, three hundred fifty thousand, seven hundred seventy-two".