9201390 has 32 divisors (see below), whose sum is σ = 24091776. Its totient is φ = 2230560.

The previous prime is 9201341. The next prime is 9201391. The reversal of 9201390 is 931029.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9201390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9201391) 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 15 ways as a sum of consecutive naturals, for example, 13612 + ... + 14271.

It is an arithmetic number, because the mean of its divisors is an integer number (752868).

Almost surely, 2^9201390 is an apocalyptic number.

9201390 is an abundant number, since it is smaller than the sum of its proper divisors (14890386).

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

9201390 is a wasteful number, since it uses less digits than its factorization.

9201390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27904.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 9201390 is about 3033.3793036810. The cubic root of 9201390 is about 209.5484629180.

It can be divided in two parts, 9201 and 390, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 9201390 in words is "nine million, two hundred one thousand, three hundred ninety".