10291388 has 18 divisors (see below), whose sum is σ = 19010376. Its totient is φ = 4874184.

The previous prime is 10291361. The next prime is 10291399. The reversal of 10291388 is 88319201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2120 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (1056132).

Almost surely, 2^10291388 is an apocalyptic number.

It is an amenable number.

10291388 is a deficient number, since it is larger than the sum of its proper divisors (8718988).

10291388 is a wasteful number, since it uses less digits than its factorization.

10291388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169 (or 7148 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 10291388 is about 3208.0193266251. The cubic root of 10291388 is about 217.5160546567.

The spelling of 10291388 in words is "ten million, two hundred ninety-one thousand, three hundred eighty-eight".