240473897 has 8 divisors (see below), whose sum is σ = 247371432. Its totient is φ = 233625600.

The previous prime is 240473869. The next prime is 240473903. The reversal of 240473897 is 798374042.

It can be written as a sum of positive squares in 4 ways, for example, as 83247376 + 157226521 = 9124^2 + 12539^2 .

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 240473897 - 2¹⁴ = 240457513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240473797) 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, 2288 + ... + 22049.

It is an arithmetic number, because the mean of its divisors is an integer number (30921429).

Almost surely, 2^240473897 is an apocalyptic number.

It is an amenable number.

240473897 is a deficient number, since it is larger than the sum of its proper divisors (6897535).

240473897 is a wasteful number, since it uses less digits than its factorization.

240473897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24619.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 240473897 is about 15507.2208019361. The cubic root of 240473897 is about 621.8552623114.

The spelling of 240473897 in words is "two hundred forty million, four hundred seventy-three thousand, eight hundred ninety-seven".