16377440 has 24 divisors (see below), whose sum is σ = 38692080. Its totient is φ = 6550912.

The previous prime is 16377433. The next prime is 16377457. The reversal of 16377440 is 4477361.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 16377397 and 16377406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51020 + ... + 51339.

It is an arithmetic number, because the mean of its divisors is an integer number (1612170).

Almost surely, 2^16377440 is an apocalyptic number.

16377440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16377440 is an abundant number, since it is smaller than the sum of its proper divisors (22314640).

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

16377440 is a wasteful number, since it uses less digits than its factorization.

16377440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102374 (or 102366 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 16377440 is about 4046.9049902364. The cubic root of 16377440 is about 253.9502661632.

The spelling of 16377440 in words is "sixteen million, three hundred seventy-seven thousand, four hundred forty".