1620425038 has 8 divisors (see below), whose sum is σ = 2433637080. Its totient is φ = 809212680.

The previous prime is 1620425033. The next prime is 1620425069. The reversal of 1620425038 is 8305240261.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620425033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497893 + ... + 501136.

It is an arithmetic number, because the mean of its divisors is an integer number (304204635).

Almost surely, 2^1620425038 is an apocalyptic number.

1620425038 is a deficient number, since it is larger than the sum of its proper divisors (813212042).

1620425038 is an equidigital number, since it uses as much as digits as its factorization.

1620425038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999842.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 1620425038 is about 40254.5033257150. The cubic root of 1620425038 is about 1174.5629974129.

Adding to 1620425038 its reverse (8305240261), we get a palindrome (9925665299).

The spelling of 1620425038 in words is "one billion, six hundred twenty million, four hundred twenty-five thousand, thirty-eight".