10402291 has 8 divisors (see below), whose sum is σ = 11246480. Its totient is φ = 9587808.

The previous prime is 10402289. The next prime is 10402303. The reversal of 10402291 is 19220401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10402291 - 2¹ = 10402289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (10402201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6696 + ... + 8101.

It is an arithmetic number, because the mean of its divisors is an integer number (1405810).

Almost surely, 2^10402291 is an apocalyptic number.

10402291 is a deficient number, since it is larger than the sum of its proper divisors (844189).

10402291 is a wasteful number, since it uses less digits than its factorization.

10402291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14853.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 10402291 is about 3225.2582842309. The cubic root of 10402291 is about 218.2946035194.

Adding to 10402291 its reverse (19220401), we get a palindrome (29622692).

The spelling of 10402291 in words is "ten million, four hundred two thousand, two hundred ninety-one".