1520344042 has 32 divisors (see below), whose sum is σ = 2682739584. Its totient is φ = 632620800.

The previous prime is 1520344039. The next prime is 1520344043. The reversal of 1520344042 is 2404430251.

It is a happy number.

It is a super-2 number, since 2×1520344042² = 4622892012089795528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1520343998 and 1520344016.

It is not an unprimeable number, because it can be changed into a prime (1520344043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114838 + ... + 127390.

It is an arithmetic number, because the mean of its divisors is an integer number (83835612).

Almost surely, 2^1520344042 is an apocalyptic number.

1520344042 is a deficient number, since it is larger than the sum of its proper divisors (1162395542).

1520344042 is a wasteful number, since it uses less digits than its factorization.

1520344042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12814.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1520344042 is about 38991.5893751460. The cubic root of 1520344042 is about 1149.8661575803.

Adding to 1520344042 its reverse (2404430251), we get a palindrome (3924774293).

The spelling of 1520344042 in words is "one billion, five hundred twenty million, three hundred forty-four thousand, forty-two".