16463540 has 12 divisors (see below), whose sum is σ = 34573476. Its totient is φ = 6585408.

The previous prime is 16463533. The next prime is 16463563. The reversal of 16463540 is 4536461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2729104 + 13734436 = 1652^2 + 3706^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411569 + ... + 411608.

It is an arithmetic number, because the mean of its divisors is an integer number (2881123).

Almost surely, 2^16463540 is an apocalyptic number.

16463540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16463540 is an abundant number, since it is smaller than the sum of its proper divisors (18109936).

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

16463540 is a wasteful number, since it uses less digits than its factorization.

16463540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823186 (or 823184 counting only the distinct ones).

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

The square root of 16463540 is about 4057.5288045804. The cubic root of 16463540 is about 254.3945137129.

The spelling of 16463540 in words is "sixteen million, four hundred sixty-three thousand, five hundred forty".