16464340 has 24 divisors (see below), whose sum is σ = 34699392. Its totient is φ = 6562080.

The previous prime is 16464323. The next prime is 16464353. The reversal of 16464340 is 4346461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16464299 and 16464308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4897 + ... + 7543.

It is an arithmetic number, because the mean of its divisors is an integer number (1445808).

Almost surely, 2^16464340 is an apocalyptic number.

16464340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16464340 is an abundant number, since it is smaller than the sum of its proper divisors (18235052).

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

16464340 is a wasteful number, since it uses less digits than its factorization.

16464340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967 (or 2965 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 16464340 is about 4057.6273855543. The cubic root of 16464340 is about 254.3986341778.

The spelling of 16464340 in words is "sixteen million, four hundred sixty-four thousand, three hundred forty".