1620117026 has 8 divisors (see below), whose sum is σ = 2651100624. Its totient is φ = 736416820.

The previous prime is 1620117019. The next prime is 1620117041. The reversal of 1620117026 is 6207110261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1620116986 and 1620117004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36820820 + ... + 36820863.

It is an arithmetic number, because the mean of its divisors is an integer number (331387578).

Almost surely, 2^1620117026 is an apocalyptic number.

1620117026 is a deficient number, since it is larger than the sum of its proper divisors (1030983598).

1620117026 is a wasteful number, since it uses less digits than its factorization.

1620117026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73641696.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1620117026 is about 40250.6773359157. The cubic root of 1620117026 is about 1174.4885719969.

Adding to 1620117026 its reverse (6207110261), we get a palindrome (7827227287).

The spelling of 1620117026 in words is "one billion, six hundred twenty million, one hundred seventeen thousand, twenty-six".