1520065430 has 24 divisors (see below), whose sum is σ = 2962781712. Its totient is φ = 561254304.

The previous prime is 1520065429. The next prime is 1520065441. The reversal of 1520065430 is 345600251.

It is a super-2 number, since 2×1520065430² = 4621197822962169800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1520065430.

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 11 ways as a sum of consecutive naturals, for example, 448034 + ... + 451413.

It is an arithmetic number, because the mean of its divisors is an integer number (123449238).

Almost surely, 2^1520065430 is an apocalyptic number.

1520065430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520065430 is a deficient number, since it is larger than the sum of its proper divisors (1442716282).

1520065430 is a wasteful number, since it uses less digits than its factorization.

1520065430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899480 (or 899467 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1520065430 is about 38988.0164922505. The cubic root of 1520065430 is about 1149.7959133740.

Adding to 1520065430 its reverse (345600251), we get a palindrome (1865665681).

The spelling of 1520065430 in words is "one billion, five hundred twenty million, sixty-five thousand, four hundred thirty".