1955446272 has 420 divisors, whose sum is σ = 6547821984. Its totient is φ = 582266880.

The previous prime is 1955446243. The next prime is 1955446277. The reversal of 1955446272 is 2726445591.

1955446272 is a `hidden beast` number, since 19 + 5 + 5 + 4 + 4 + 627 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1955446277) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 63078897 + ... + 63078927.

Almost surely, 2^1955446272 is an apocalyptic number.

1955446272 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 1955446272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3273910992).

1955446272 is an abundant number, since it is smaller than the sum of its proper divisors (4592375712).

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

1955446272 is an frugal number, since it uses more digits than its factorization.

1955446272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 49 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 1955446272 is about 44220.4282204503. The cubic root of 1955446272 is about 1250.4950086406.

The spelling of 1955446272 in words is "one billion, nine hundred fifty-five million, four hundred forty-six thousand, two hundred seventy-two".