16481949 has 32 divisors (see below), whose sum is σ = 25589760. Its totient is φ = 9331200.

The previous prime is 16481939. The next prime is 16481951. The reversal of 16481949 is 94918461.

It is not a de Polignac number, because 16481949 - 2⁸ = 16481693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16481949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16481939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60684 + ... + 60954.

It is an arithmetic number, because the mean of its divisors is an integer number (799680).

Almost surely, 2^16481949 is an apocalyptic number.

16481949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16481949 is a deficient number, since it is larger than the sum of its proper divisors (9107811).

16481949 is a wasteful number, since it uses less digits than its factorization.

16481949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 62208, while the sum is 42.

The square root of 16481949 is about 4059.7966697853. The cubic root of 16481949 is about 254.4892969768.

The spelling of 16481949 in words is "sixteen million, four hundred eighty-one thousand, nine hundred forty-nine".