1634016980 has 24 divisors (see below), whose sum is σ = 3436360200. Its totient is φ = 652668800.

The previous prime is 1634016973. The next prime is 1634017001. The reversal of 1634016980 is 896104361.

It can be written as a sum of positive squares in 4 ways, for example, as 355096336 + 1278920644 = 18844^2 + 35762^2 .

It is a super-2 number, since 2×1634016980² = 5340022981856640800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44255 + ... + 72294.

It is an arithmetic number, because the mean of its divisors is an integer number (143181675).

Almost surely, 2^1634016980 is an apocalyptic number.

1634016980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1634016980 is an abundant number, since it is smaller than the sum of its proper divisors (1802343220).

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

1634016980 is a wasteful number, since it uses less digits than its factorization.

1634016980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117259 (or 117257 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1634016980 is about 40422.9758924303. The cubic root of 1634016980 is about 1177.8378918001.

The spelling of 1634016980 in words is "one billion, six hundred thirty-four million, sixteen thousand, nine hundred eighty".