1630430620 has 48 divisors (see below), whose sum is σ = 4214040768. Its totient is φ = 516003840.

The previous prime is 1630430597. The next prime is 1630430653. The reversal of 1630430620 is 260340361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446101 + ... + 449740.

It is an arithmetic number, because the mean of its divisors is an integer number (87792516).

Almost surely, 2^1630430620 is an apocalyptic number.

1630430620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1630430620 is an abundant number, since it is smaller than the sum of its proper divisors (2583610148).

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

1630430620 is a wasteful number, since it uses less digits than its factorization.

1630430620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895870 (or 895868 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1630430620 is about 40378.5911096462. The cubic root of 1630430620 is about 1176.9755497043.

Adding to 1630430620 its reverse (260340361), we get a palindrome (1890770981).

The spelling of 1630430620 in words is "one billion, six hundred thirty million, four hundred thirty thousand, six hundred twenty".