240388425 has 48 divisors (see below), whose sum is σ = 443860480. Its totient is φ = 127552320.

The previous prime is 240388417. The next prime is 240388427. The reversal of 240388425 is 524883042.

It is not a de Polignac number, because 240388425 - 2³ = 240388417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240388425.

It is not an unprimeable number, because it can be changed into a prime (240388427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149727 + ... + 151323.

Almost surely, 2^240388425 is an apocalyptic number.

240388425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240388425 is a deficient number, since it is larger than the sum of its proper divisors (203472055).

240388425 is a wasteful number, since it uses less digits than its factorization.

240388425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1828 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 240388425 is about 15504.4646795689. The cubic root of 240388425 is about 621.7815779294.

The spelling of 240388425 in words is "two hundred forty million, three hundred eighty-eight thousand, four hundred twenty-five".