16430740 has 36 divisors (see below), whose sum is σ = 36093204. Its totient is φ = 6282496.

The previous prime is 16430737. The next prime is 16430741. The reversal of 16430740 is 4703461.

It can be written as a sum of positive squares in 2 ways, for example, as 3556996 + 12873744 = 1886^2 + 3588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16430741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9804 + ... + 11356.

It is an arithmetic number, because the mean of its divisors is an integer number (1002589).

Almost surely, 2^16430740 is an apocalyptic number.

16430740 is a gapful number since it is divisible by the number (10) 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 16430740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18046602).

16430740 is an abundant number, since it is smaller than the sum of its proper divisors (19662464).

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

16430740 is a wasteful number, since it uses less digits than its factorization.

16430740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 16430740 is about 4053.4849204111. The cubic root of 16430740 is about 254.2254595993.

The spelling of 16430740 in words is "sixteen million, four hundred thirty thousand, seven hundred forty".