240001906 has 16 divisors (see below), whose sum is σ = 375258816. Its totient is φ = 115012656.

The previous prime is 240001891. The next prime is 240001913. The reversal of 240001906 is 609100042.

240001906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19246 + ... + 29161.

It is an arithmetic number, because the mean of its divisors is an integer number (23453676).

Almost surely, 2^240001906 is an apocalyptic number.

240001906 is a deficient number, since it is larger than the sum of its proper divisors (135256910).

240001906 is a wasteful number, since it uses less digits than its factorization.

240001906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48513.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 240001906 is about 15491.9949005930. The cubic root of 240001906 is about 621.4481462934.

Adding to 240001906 its reverse (609100042), we get a palindrome (849101948).

The spelling of 240001906 in words is "two hundred forty million, one thousand, nine hundred six".