240989631 has 8 divisors (see below), whose sum is σ = 321730944. Its totient is φ = 160454040.

The previous prime is 240989611. The next prime is 240989647. The reversal of 240989631 is 136989042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240989631 - 2⁷ = 240989503 is a prime.

It is a super-2 number, since 2×240989631² = 116152004499032322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240989611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48675 + ... + 53396.

It is an arithmetic number, because the mean of its divisors is an integer number (40216368).

Almost surely, 2^240989631 is an apocalyptic number.

240989631 is a deficient number, since it is larger than the sum of its proper divisors (80741313).

240989631 is a wasteful number, since it uses less digits than its factorization.

240989631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102861.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 240989631 is about 15523.8407296648. The cubic root of 240989631 is about 622.2995002741.

The spelling of 240989631 in words is "two hundred forty million, nine hundred eighty-nine thousand, six hundred thirty-one".