7215890364 has 36 divisors (see below), whose sum is σ = 18417265776. Its totient is φ = 2381943168.

The previous prime is 7215890333. The next prime is 7215890411. The reversal of 7215890364 is 4630985127.

7215890364 is a `hidden beast` number, since 7 + 2 + 1 + 589 + 0 + 3 + 64 = 666.

7215890364 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

7215890364 is strictly pandigital in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 969309 + ... + 976724.

It is an arithmetic number, because the mean of its divisors is an integer number (511590716).

It is a 1-persistent number, because it is pandigital, but 2⋅7215890364 = 14431780728 is not.

Almost surely, 2^7215890364 is an apocalyptic number.

It is an amenable number.

7215890364 is an abundant number, since it is smaller than the sum of its proper divisors (11201375412).

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

7215890364 is a wasteful number, since it uses less digits than its factorization.

7215890364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946146 (or 1946141 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 7215890364 is about 84946.3970042285. The cubic root of 7215890364 is about 1932.3982789355.

The spelling of 7215890364 in words is "seven billion, two hundred fifteen million, eight hundred ninety thousand, three hundred sixty-four".