1620530124 has 24 divisors (see below), whose sum is σ = 3782775360. Its totient is φ = 539956944.

The previous prime is 1620530101. The next prime is 1620530183. The reversal of 1620530124 is 4210350261.

It is a super-2 number, since 2×1620530124² = 5252235765582910752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1620530094 and 1620530103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4767 + ... + 57129.

It is an arithmetic number, because the mean of its divisors is an integer number (157615640).

Almost surely, 2^1620530124 is an apocalyptic number.

It is an amenable number.

1620530124 is an abundant number, since it is smaller than the sum of its proper divisors (2162245236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1620530124 is a wasteful number, since it uses less digits than its factorization.

1620530124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54949 (or 54947 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1620530124 is about 40255.8085746641. The cubic root of 1620530124 is about 1174.5883873479.

Adding to 1620530124 its reverse (4210350261), we get a palindrome (5830880385).

The spelling of 1620530124 in words is "one billion, six hundred twenty million, five hundred thirty thousand, one hundred twenty-four".