2340021631 has 8 divisors (see below), whose sum is σ = 2368692144. Its totient is φ = 2311459200.

The previous prime is 2340021623. The next prime is 2340021641. The reversal of 2340021631 is 1361200432.

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

It is a cyclic number.

It is not a de Polignac number, because 2340021631 - 2³ = 2340021623 is a prime.

It is a super-2 number, since 2×2340021631² = 10951402467095800322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340021641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16980 + ... + 70486.

It is an arithmetic number, because the mean of its divisors is an integer number (296086518).

Almost surely, 2^2340021631 is an apocalyptic number.

2340021631 is a deficient number, since it is larger than the sum of its proper divisors (28670513).

2340021631 is a wasteful number, since it uses less digits than its factorization.

2340021631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54041.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2340021631 is about 48373.7700722199. The cubic root of 2340021631 is about 1327.6184850792.

The spelling of 2340021631 in words is "two billion, three hundred forty million, twenty-one thousand, six hundred thirty-one".