16291044 has 120 divisors (see below), whose sum is σ = 53178048. Its totient is φ = 4224960.

The previous prime is 16291043. The next prime is 16291057. The reversal of 16291044 is 44019261.

16291044 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16291044² = 530796229219872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 16290999 and 16291017.

It is not an unprimeable number, because it can be changed into a prime (16291043) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24622 + ... + 25274.

Almost surely, 2^16291044 is an apocalyptic number.

16291044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16291044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26589024).

16291044 is an abundant number, since it is smaller than the sum of its proper divisors (36887004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16291044 is a wasteful number, since it uses less digits than its factorization.

16291044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 16291044 is about 4036.2165452314. The cubic root of 16291044 is about 253.5029235334.

The spelling of 16291044 in words is "sixteen million, two hundred ninety-one thousand, forty-four".