103450644 has 144 divisors (see below), whose sum is σ = 306948096. Its totient is φ = 29272320.

The previous prime is 103450639. The next prime is 103450673. The reversal of 103450644 is 446054301.

103450644 is a `hidden beast` number, since 10 + 3 + 4 + 5 + 0 + 644 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 814509 + ... + 814635.

It is an arithmetic number, because the mean of its divisors is an integer number (2131584).

Almost surely, 2^103450644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103450644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153474048).

103450644 is an abundant number, since it is smaller than the sum of its proper divisors (203497452).

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

103450644 is a wasteful number, since it uses less digits than its factorization.

103450644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 103450644 is about 10171.0689703688. The cubic root of 103450644 is about 469.4374497745.

The spelling of 103450644 in words is "one hundred three million, four hundred fifty thousand, six hundred forty-four".