16620470 has 16 divisors (see below), whose sum is σ = 30062448. Its totient is φ = 6615840.

The previous prime is 16620463. The next prime is 16620481. The reversal of 16620470 is 7402661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1829 + ... + 6048.

It is an arithmetic number, because the mean of its divisors is an integer number (1878903).

Almost surely, 2^16620470 is an apocalyptic number.

16620470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16620470 is a deficient number, since it is larger than the sum of its proper divisors (13441978).

16620470 is a wasteful number, since it uses less digits than its factorization.

16620470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 16620470 is about 4076.8210654872. The cubic root of 16620470 is about 255.2002527980.

The spelling of 16620470 in words is "sixteen million, six hundred twenty thousand, four hundred seventy".