1629616284 has 36 divisors (see below), whose sum is σ = 4128860736. Its totient is φ = 541945728.

The previous prime is 1629616283. The next prime is 1629616291. The reversal of 1629616284 is 4826169261.

1629616284 is a `hidden beast` number, since 1 + 6 + 2 + 9 + 616 + 28 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629616283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36684 + ... + 67859.

It is an arithmetic number, because the mean of its divisors is an integer number (114690576).

Almost surely, 2^1629616284 is an apocalyptic number.

It is an amenable number.

1629616284 is an abundant number, since it is smaller than the sum of its proper divisors (2499244452).

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

1629616284 is a wasteful number, since it uses less digits than its factorization.

1629616284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104986 (or 104981 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 1629616284 is about 40368.5060907634. The cubic root of 1629616284 is about 1176.7795660659.

The spelling of 1629616284 in words is "one billion, six hundred twenty-nine million, six hundred sixteen thousand, two hundred eighty-four".