10420645 has 16 divisors (see below), whose sum is σ = 13248000. Its totient is φ = 7846848.

The previous prime is 10420637. The next prime is 10420687. The reversal of 10420645 is 54602401.

It is not a de Polignac number, because 10420645 - 2³ = 10420637 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 21516 + ... + 21994.

It is an arithmetic number, because the mean of its divisors is an integer number (828000).

Almost surely, 2^10420645 is an apocalyptic number.

It is an amenable number.

10420645 is a deficient number, since it is larger than the sum of its proper divisors (2827355).

10420645 is a wasteful number, since it uses less digits than its factorization.

10420645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 10420645 is about 3228.1023837543. The cubic root of 10420645 is about 218.4229157996.

It can be divided in two parts, 10 and 420645, that multiplied together give a triangular number (4206450 = T₂₉₀₀).

The spelling of 10420645 in words is "ten million, four hundred twenty thousand, six hundred forty-five".