363121920 has 576 divisors, whose sum is σ = 1569792000. Its totient is φ = 77635584.

The previous prime is 363121909. The next prime is 363121933. The reversal of 363121920 is 29121363.

363121920 is a `hidden beast` number, since 3 + 631 + 2 + 1 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4596441 + ... + 4596519.

Almost surely, 2^363121920 is an apocalyptic number.

363121920 is a gapful number since it is divisible by the number (30) 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 363121920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784896000).

363121920 is an abundant number, since it is smaller than the sum of its proper divisors (1206670080).

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

363121920 is a wasteful number, since it uses less digits than its factorization.

363121920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 363121920 is about 19055.7581848637. The cubic root of 363121920 is about 713.4291037068.

The spelling of 363121920 in words is "three hundred sixty-three million, one hundred twenty-one thousand, nine hundred twenty".