240423356 has 6 divisors (see below), whose sum is σ = 420740880. Its totient is φ = 120211676.

The previous prime is 240423353. The next prime is 240423389. The reversal of 240423356 is 653324042.

240423356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×240423356² = 115606780220605472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240423353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30052916 + ... + 30052923.

It is an arithmetic number, because the mean of its divisors is an integer number (70123480).

Almost surely, 2^240423356 is an apocalyptic number.

It is an amenable number.

240423356 is a deficient number, since it is larger than the sum of its proper divisors (180317524).

240423356 is a wasteful number, since it uses less digits than its factorization.

240423356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60105843 (or 60105841 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 240423356 is about 15505.5911206248. The cubic root of 240423356 is about 621.8116936340.

Adding to 240423356 its reverse (653324042), we get a palindrome (893747398).

The spelling of 240423356 in words is "two hundred forty million, four hundred twenty-three thousand, three hundred fifty-six".