1629685050 has 96 divisors (see below), whose sum is σ = 4717412352. Its totient is φ = 364562880.

The previous prime is 1629685049. The next prime is 1629685087. The reversal of 1629685050 is 505869261.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 1629684993 and 1629685011.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32839 + ... + 65861.

It is an arithmetic number, because the mean of its divisors is an integer number (49139712).

Almost surely, 2^1629685050 is an apocalyptic number.

1629685050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1629685050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358706176).

1629685050 is an abundant number, since it is smaller than the sum of its proper divisors (3087727302).

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

1629685050 is a wasteful number, since it uses less digits than its factorization.

1629685050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33092 (or 33087 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 1629685050 is about 40369.3578101015. The cubic root of 1629685050 is about 1176.7961182825.

The spelling of 1629685050 in words is "one billion, six hundred twenty-nine million, six hundred eighty-five thousand, fifty".