16340456 has 64 divisors (see below), whose sum is σ = 36504000. Its totient is φ = 6773760.

The previous prime is 16340411. The next prime is 16340479. The reversal of 16340456 is 65404361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48320 + ... + 48656.

It is an arithmetic number, because the mean of its divisors is an integer number (570375).

Almost surely, 2^16340456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16340456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18252000).

16340456 is an abundant number, since it is smaller than the sum of its proper divisors (20163544).

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

16340456 is a wasteful number, since it uses less digits than its factorization.

16340456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 16340456 is about 4042.3329897474. The cubic root of 16340456 is about 253.7589628549.

The spelling of 16340456 in words is "sixteen million, three hundred forty thousand, four hundred fifty-six".