10505458 has 4 divisors (see below), whose sum is σ = 15758190. Its totient is φ = 5252728.

The previous prime is 10505449. The next prime is 10505477. The reversal of 10505458 is 85450501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8508889 + 1996569 = 2917^2 + 1413^2 .

It is a super-2 number, since 2×10505458² = 220729295579528, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626363 + ... + 2626366.

Almost surely, 2^10505458 is an apocalyptic number.

10505458 is a deficient number, since it is larger than the sum of its proper divisors (5252732).

10505458 is an equidigital number, since it uses as much as digits as its factorization.

10505458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252731.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 10505458 is about 3241.2124274722. The cubic root of 10505458 is about 219.0138923514.

Adding to 10505458 its reverse (85450501), we get a palindrome (95955959).

The spelling of 10505458 in words is "ten million, five hundred five thousand, four hundred fifty-eight".