72378502 has 8 divisors (see below), whose sum is σ = 124077456. Its totient is φ = 31019352.

The previous prime is 72378499. The next prime is 72378511. The reversal of 72378502 is 20587327.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2584933 + ... + 2584960.

It is an arithmetic number, because the mean of its divisors is an integer number (15509682).

Almost surely, 2^72378502 is an apocalyptic number.

72378502 is a deficient number, since it is larger than the sum of its proper divisors (51698954).

72378502 is a wasteful number, since it uses less digits than its factorization.

72378502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169902.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 72378502 is about 8507.5555831273. Note that the first 4 decimals coincide. The cubic root of 72378502 is about 416.7444870824.

The spelling of 72378502 in words is "seventy-two million, three hundred seventy-eight thousand, five hundred two".