16020949 has 16 divisors (see below), whose sum is σ = 19261440. Its totient is φ = 13028400.

The previous prime is 16020943. The next prime is 16020967. The reversal of 16020949 is 94902061.

It is a happy number.

It is not a de Polignac number, because 16020949 - 2¹³ = 16012757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16020949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16020943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23982 + ... + 24640.

It is an arithmetic number, because the mean of its divisors is an integer number (1203840).

Almost surely, 2^16020949 is an apocalyptic number.

It is an amenable number.

16020949 is a deficient number, since it is larger than the sum of its proper divisors (3240491).

16020949 is a wasteful number, since it uses less digits than its factorization.

16020949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 16020949 is about 4002.6177684111. The cubic root of 16020949 is about 252.0941373751.

The spelling of 16020949 in words is "sixteen million, twenty thousand, nine hundred forty-nine".