140416 has 16 divisors (see below), whose sum is σ = 279990. Its totient is φ = 70144.

The previous prime is 140411. The next prime is 140417. The reversal of 140416 is 614041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 129600 + 10816 = 360^2 + 104^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an Ulam number.

It is a nialpdrome in base 8 and base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 140416.

It is not an unprimeable number, because it can be changed into a prime (140411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 421 + ... + 676.

2¹⁴⁰⁴¹⁶ is an apocalyptic number.

140416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140416 is a deficient number, since it is larger than the sum of its proper divisors (139574).

140416 is an equidigital number, since it uses as much as digits as its factorization.

140416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1099 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 140416 is about 374.7212297162. The cubic root of 140416 is about 51.9763205796.

Adding to 140416 its reverse (614041), we get a palindrome (754457).

The spelling of 140416 in words is "one hundred forty thousand, four hundred sixteen".