72440103 has 8 divisors (see below), whose sum is σ = 101670400. Its totient is φ = 45751608.

The previous prime is 72440083. The next prime is 72440131. The reversal of 72440103 is 30104427.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72440103 - 2⁸ = 72439847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72440103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72440143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635383 + ... + 635496.

It is an arithmetic number, because the mean of its divisors is an integer number (12708800).

Almost surely, 2^72440103 is an apocalyptic number.

72440103 is a deficient number, since it is larger than the sum of its proper divisors (29230297).

72440103 is a wasteful number, since it uses less digits than its factorization.

72440103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270901.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 72440103 is about 8511.1751832517. The cubic root of 72440103 is about 416.8626833093.

The spelling of 72440103 in words is "seventy-two million, four hundred forty thousand, one hundred three".