40102321 has 8 divisors (see below), whose sum is σ = 45893504. Its totient is φ = 34326720.

The previous prime is 40102319. The next prime is 40102343. The reversal of 40102321 is 12320104.

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 40102321 - 2¹ = 40102319 is a prime.

It is a super-2 number, since 2×40102321² = 3216392299174082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40102301) 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, 2281 + ... + 9241.

It is an arithmetic number, because the mean of its divisors is an integer number (5736688).

Almost surely, 2^40102321 is an apocalyptic number.

It is an amenable number.

40102321 is a deficient number, since it is larger than the sum of its proper divisors (5791183).

40102321 is an equidigital number, since it uses as much as digits as its factorization.

40102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7791.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 40102321 is about 6332.6393391697. The cubic root of 40102321 is about 342.2865517870.

Adding to 40102321 its reverse (12320104), we get a palindrome (52422425).

The spelling of 40102321 in words is "forty million, one hundred two thousand, three hundred twenty-one".