16164840 has 32 divisors (see below), whose sum is σ = 48494880. Its totient is φ = 4310592.

The previous prime is 16164833. The next prime is 16164859. The reversal of 16164840 is 4846161.

16164840 = T₄₀₀ + T₄₀₁ + ... + T₅₄₃.

It is a super-2 number, since 2×16164840² = 522604104451200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 16164798 and 16164807.

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, 67234 + ... + 67473.

It is an arithmetic number, because the mean of its divisors is an integer number (1515465).

Almost surely, 2^16164840 is an apocalyptic number.

16164840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16164840 is an abundant number, since it is smaller than the sum of its proper divisors (32330040).

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

16164840 is a wasteful number, since it uses less digits than its factorization.

16164840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134721 (or 134717 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 16164840 is about 4020.5522008799. The cubic root of 16164840 is about 252.8466108708.

The spelling of 16164840 in words is "sixteen million, one hundred sixty-four thousand, eight hundred forty".