72432349 has 4 divisors (see below), whose sum is σ = 79017120. Its totient is φ = 65847580.

The previous prime is 72432341. The next prime is 72432361. The reversal of 72432349 is 94323427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94323427 = 11 ⋅8574857.

It is a cyclic number.

It is not a de Polignac number, because 72432349 - 2³ = 72432341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72432341) 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, 3292369 + ... + 3292390.

It is an arithmetic number, because the mean of its divisors is an integer number (19754280).

Almost surely, 2^72432349 is an apocalyptic number.

It is an amenable number.

72432349 is a deficient number, since it is larger than the sum of its proper divisors (6584771).

72432349 is a wasteful number, since it uses less digits than its factorization.

72432349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6584770.

The product of its digits is 36288, while the sum is 34.

The square root of 72432349 is about 8510.7196522973. The cubic root of 72432349 is about 416.8478090962.

The spelling of 72432349 in words is "seventy-two million, four hundred thirty-two thousand, three hundred forty-nine".