2021632417 has 8 divisors (see below), whose sum is σ = 2327302656. Its totient is φ = 1720178592.

The previous prime is 2021632399. The next prime is 2021632493. The reversal of 2021632417 is 7142361202.

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 2021632417 - 2¹⁵ = 2021599649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021632117) 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, 1053073 + ... + 1054990.

It is an arithmetic number, because the mean of its divisors is an integer number (290912832).

Almost surely, 2^2021632417 is an apocalyptic number.

It is an amenable number.

2021632417 is a deficient number, since it is larger than the sum of its proper divisors (305670239).

2021632417 is a wasteful number, since it uses less digits than its factorization.

2021632417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108207.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2021632417 is about 44962.5668417629. The cubic root of 2021632417 is about 1264.4472929021.

Adding to 2021632417 its reverse (7142361202), we get a palindrome (9163993619).

The spelling of 2021632417 in words is "two billion, twenty-one million, six hundred thirty-two thousand, four hundred seventeen".