364721994 has 192 divisors, whose sum is σ = 1061786880. Its totient is φ = 91808640.

The previous prime is 364721993. The next prime is 364721999. The reversal of 364721994 is 499127463.

It is a happy number.

364721994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (364721993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 790924 + ... + 791384.

It is an arithmetic number, because the mean of its divisors is an integer number (5530140).

Almost surely, 2^364721994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 364721994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530893440).

364721994 is an abundant number, since it is smaller than the sum of its proper divisors (697064886).

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

364721994 is a wasteful number, since it uses less digits than its factorization.

364721994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 509 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 364721994 is about 19097.6960390514. The cubic root of 364721994 is about 714.4754618602.

The spelling of 364721994 in words is "three hundred sixty-four million, seven hundred twenty-one thousand, nine hundred ninety-four".