363946440 has 256 divisors, whose sum is σ = 1300561920. Its totient is φ = 80317440.

The previous prime is 363946403. The next prime is 363946441. The reversal of 363946440 is 44649363.

It is a happy number.

It is a super-2 number, since 2×363946440² = 264914022377347200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (363946441) 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, 2179237 + ... + 2179403.

It is an arithmetic number, because the mean of its divisors is an integer number (5080320).

Almost surely, 2^363946440 is an apocalyptic number.

363946440 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 363946440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650280960).

363946440 is an abundant number, since it is smaller than the sum of its proper divisors (936615480).

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

363946440 is a wasteful number, since it uses less digits than its factorization.

363946440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The square root of 363946440 is about 19077.3803233044. The cubic root of 363946440 is about 713.9686762930.

The spelling of 363946440 in words is "three hundred sixty-three million, nine hundred forty-six thousand, four hundred forty".