16404150 has 96 divisors (see below), whose sum is σ = 49282560. Its totient is φ = 3525120.

The previous prime is 16404139. The next prime is 16404161. The reversal of 16404150 is 5140461.

It is an interprime number because it is at equal distance from previous prime (16404139) and next prime (16404161).

It is a super-2 number, since 2×16404150² = 538192274445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17391 + ... + 18309.

It is an arithmetic number, because the mean of its divisors is an integer number (513360).

Almost surely, 2^16404150 is an apocalyptic number.

16404150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16404150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24641280).

16404150 is an abundant number, since it is smaller than the sum of its proper divisors (32878410).

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

16404150 is a wasteful number, since it uses less digits than its factorization.

16404150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 953 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 16404150 is about 4050.2036985811. The cubic root of 16404150 is about 254.0882471800.

The spelling of 16404150 in words is "sixteen million, four hundred four thousand, one hundred fifty".