1949551632 has 320 divisors, whose sum is σ = 6666240000. Its totient is φ = 545118336.

The previous prime is 1949551631. The next prime is 1949551633. The reversal of 1949551632 is 2361559491.

1949551632 is a `hidden beast` number, since 1 + 9 + 4 + 9 + 5 + 5 + 1 + 632 = 666.

It is an interprime number because it is at equal distance from previous prime (1949551631) and next prime (1949551633).

It is not an unprimeable number, because it can be changed into a prime (1949551631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8742273 + ... + 8742495.

It is an arithmetic number, because the mean of its divisors is an integer number (20832000).

Almost surely, 2^1949551632 is an apocalyptic number.

1949551632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1949551632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3333120000).

1949551632 is an abundant number, since it is smaller than the sum of its proper divisors (4716688368).

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

1949551632 is a wasteful number, since it uses less digits than its factorization.

1949551632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 294 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 1949551632 is about 44153.7272718850. The cubic root of 1949551632 is about 1249.2372161166.

The spelling of 1949551632 in words is "one billion, nine hundred forty-nine million, five hundred fifty-one thousand, six hundred thirty-two".