1956364800 has 240 divisors, whose sum is σ = 6961637760. Its totient is φ = 481443840.

The previous prime is 1956364747. The next prime is 1956364807. The reversal of 1956364800 is 84636591.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (1956364807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 497241 + ... + 501159.

It is an arithmetic number, because the mean of its divisors is an integer number (29006824).

Almost surely, 2^1956364800 is an apocalyptic number.

1956364800 is a gapful number since it is divisible by the number (10) 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 1956364800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3480818880).

1956364800 is an abundant number, since it is smaller than the sum of its proper divisors (5005272960).

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

1956364800 is a wasteful number, since it uses less digits than its factorization.

1956364800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963 (or 3942 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1956364800 is about 44230.8127892762. The cubic root of 1956364800 is about 1250.6907755264.

The spelling of 1956364800 in words is "one billion, nine hundred fifty-six million, three hundred sixty-four thousand, eight hundred".