72441407 has 8 divisors (see below), whose sum is σ = 73949760. Its totient is φ = 70938400.

The previous prime is 72441401. The next prime is 72441409. The reversal of 72441407 is 70414427.

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

It is a cyclic number.

It is not a de Polignac number, because 72441407 - 2⁸ = 72441151 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 72441407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72441401) 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, 37157 + ... + 39057.

It is an arithmetic number, because the mean of its divisors is an integer number (9243720).

Almost surely, 2^72441407 is an apocalyptic number.

72441407 is a deficient number, since it is larger than the sum of its proper divisors (1508353).

72441407 is a wasteful number, since it uses less digits than its factorization.

72441407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 72441407 is about 8511.2517880744. The cubic root of 72441407 is about 416.8651846202.

The spelling of 72441407 in words is "seventy-two million, four hundred forty-one thousand, four hundred seven".