40425321 has 8 divisors (see below), whose sum is σ = 54705184. Its totient is φ = 26547840.

The previous prime is 40425317. The next prime is 40425323. The reversal of 40425321 is 12352404.

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

It is not a de Polignac number, because 40425321 - 2² = 40425317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40425323) 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, 100360 + ... + 100761.

It is an arithmetic number, because the mean of its divisors is an integer number (6838148).

Almost surely, 2^40425321 is an apocalyptic number.

It is an amenable number.

40425321 is a deficient number, since it is larger than the sum of its proper divisors (14279863).

40425321 is a wasteful number, since it uses less digits than its factorization.

40425321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201191.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 40425321 is about 6358.0909870809. The cubic root of 40425321 is about 343.2030660693.

Adding to 40425321 its reverse (12352404), we get a palindrome (52777725).

The spelling of 40425321 in words is "forty million, four hundred twenty-five thousand, three hundred twenty-one".