40234010021 has 8 divisors (see below), whose sum is σ = 41585913600. Its totient is φ = 38885483520.

The previous prime is 40234009967. The next prime is 40234010059. The reversal of 40234010021 is 12001043204.

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 40234010021 - 2¹⁴ = 40233993637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40234015021) 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, 820031 + ... + 867708.

It is an arithmetic number, because the mean of its divisors is an integer number (5198239200).

Almost surely, 2^40234010021 is an apocalyptic number.

It is an amenable number.

40234010021 is a deficient number, since it is larger than the sum of its proper divisors (1351903579).

40234010021 is a wasteful number, since it uses less digits than its factorization.

40234010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688539.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 40234010021 its reverse (12001043204), we get a palindrome (52235053225).

The spelling of 40234010021 in words is "forty billion, two hundred thirty-four million, ten thousand, twenty-one".