72241403 has 4 divisors (see below), whose sum is σ = 77798448. Its totient is φ = 66684360.

The previous prime is 72241331. The next prime is 72241451. The reversal of 72241403 is 30414227.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72241403 - 2²² = 68047099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72241493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2778503 + ... + 2778528.

It is an arithmetic number, because the mean of its divisors is an integer number (19449612).

Almost surely, 2^72241403 is an apocalyptic number.

72241403 is a deficient number, since it is larger than the sum of its proper divisors (5557045).

72241403 is a wasteful number, since it uses less digits than its factorization.

72241403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557044.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 72241403 is about 8499.4942790733. The cubic root of 72241403 is about 416.4811889853.

The spelling of 72241403 in words is "seventy-two million, two hundred forty-one thousand, four hundred three".