10380645 has 48 divisors (see below), whose sum is σ = 19985472. Its totient is φ = 4942080.

The previous prime is 10380641. The next prime is 10380647. The reversal of 10380645 is 54608301.

10380645 is a `hidden beast` number, since 10 + 3 + 8 + 0 + 645 = 666.

It is not a de Polignac number, because 10380645 - 2² = 10380641 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10380641) 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 47 ways as a sum of consecutive naturals, for example, 33009 + ... + 33321.

It is an arithmetic number, because the mean of its divisors is an integer number (416364).

Almost surely, 2^10380645 is an apocalyptic number.

10380645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10380645 is a deficient number, since it is larger than the sum of its proper divisors (9604827).

10380645 is a wasteful number, since it uses less digits than its factorization.

10380645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 10380645 is about 3221.9008364628. The cubic root of 10380645 is about 218.1430828488.

Adding to 10380645 its reverse (54608301), we get a palindrome (64988946).

It can be divided in two parts, 10380 and 645, that added together give a square (11025 = 105²).

The spelling of 10380645 in words is "ten million, three hundred eighty thousand, six hundred forty-five".