240900621 has 16 divisors (see below), whose sum is σ = 346684800. Its totient is φ = 147913920.

The previous prime is 240900619. The next prime is 240900629. The reversal of 240900621 is 126009042.

It is not a de Polignac number, because 240900621 - 2¹ = 240900619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240900591 and 240900600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240900629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11280 + ... + 24678.

It is an arithmetic number, because the mean of its divisors is an integer number (21667800).

Almost surely, 2^240900621 is an apocalyptic number.

It is an amenable number.

240900621 is a deficient number, since it is larger than the sum of its proper divisors (105784179).

240900621 is a wasteful number, since it uses less digits than its factorization.

240900621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13876.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 240900621 is about 15520.9735841538. The cubic root of 240900621 is about 622.2228749863. Note that the first 3 decimals are identical.

Adding to 240900621 its reverse (126009042), we get a palindrome (366909663).

The spelling of 240900621 in words is "two hundred forty million, nine hundred thousand, six hundred twenty-one".