16783494 has 64 divisors (see below), whose sum is σ = 42094080. Its totient is φ = 4343040.

The previous prime is 16783483. The next prime is 16783511. The reversal of 16783494 is 49438761.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31954 + ... + 32474.

It is an arithmetic number, because the mean of its divisors is an integer number (657720).

Almost surely, 2^16783494 is an apocalyptic number.

16783494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16783494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21047040).

16783494 is an abundant number, since it is smaller than the sum of its proper divisors (25310586).

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

16783494 is a wasteful number, since it uses less digits than its factorization.

16783494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605.

The product of its digits is 145152, while the sum is 42.

The square root of 16783494 is about 4096.7662857429. The cubic root of 16783494 is about 256.0319275772.

The spelling of 16783494 in words is "sixteen million, seven hundred eighty-three thousand, four hundred ninety-four".