72240046 has 8 divisors (see below), whose sum is σ = 109665864. Its totient is φ = 35684760.

The previous prime is 72240037. The next prime is 72240101. The reversal of 72240046 is 64004227.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72240046.

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, 217425 + ... + 217756.

It is an arithmetic number, because the mean of its divisors is an integer number (13708233).

Almost surely, 2^72240046 is an apocalyptic number.

72240046 is a deficient number, since it is larger than the sum of its proper divisors (37425818).

72240046 is a wasteful number, since it uses less digits than its factorization.

72240046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435266.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 72240046 is about 8499.4144504195. The cubic root of 72240046 is about 416.4785812078.

The spelling of 72240046 in words is "seventy-two million, two hundred forty thousand, forty-six".