1629988160 has 28 divisors (see below), whose sum is σ = 3881410068. Its totient is φ = 651995136.

The previous prime is 1629988147. The next prime is 1629988201. The reversal of 1629988160 is 618899261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 819333376 + 810654784 = 28624^2 + 28472^2 .

It is a super-2 number, since 2×1629988160² = 5313722803480371200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1629988099 and 1629988108.

It is a congruent number.

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, 2546537 + ... + 2547176.

Almost surely, 2^1629988160 is an apocalyptic number.

1629988160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1629988160 is an abundant number, since it is smaller than the sum of its proper divisors (2251421908).

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

1629988160 is an equidigital number, since it uses as much as digits as its factorization.

1629988160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093730 (or 5093720 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 50.

The square root of 1629988160 is about 40373.1118443947. Note that the first 3 decimals coincide. The cubic root of 1629988160 is about 1176.8690723705.

The spelling of 1629988160 in words is "one billion, six hundred twenty-nine million, nine hundred eighty-eight thousand, one hundred sixty".