72400283 has 8 divisors (see below), whose sum is σ = 75129216. Its totient is φ = 69696000.

The previous prime is 72400259. The next prime is 72400357. The reversal of 72400283 is 38200427.

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 72400283 - 2¹⁰ = 72399259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72400213) 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, 68 + ... + 12033.

It is an arithmetic number, because the mean of its divisors is an integer number (9391152).

Almost surely, 2^72400283 is an apocalyptic number.

72400283 is a deficient number, since it is larger than the sum of its proper divisors (2728933).

72400283 is a wasteful number, since it uses less digits than its factorization.

72400283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12325.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 72400283 is about 8508.8355842618. The cubic root of 72400283 is about 416.7862867930.

The spelling of 72400283 in words is "seventy-two million, four hundred thousand, two hundred eighty-three".