40748321 has 8 divisors (see below), whose sum is σ = 41229984. Its totient is φ = 40269600.

The previous prime is 40748297. The next prime is 40748329. The reversal of 40748321 is 12384704.

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 40748321 - 2¹⁴ = 40731937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40748329) 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, 38246 + ... + 39296.

It is an arithmetic number, because the mean of its divisors is an integer number (5153748).

Almost surely, 2^40748321 is an apocalyptic number.

It is an amenable number.

40748321 is a deficient number, since it is larger than the sum of its proper divisors (481663).

40748321 is a wasteful number, since it uses less digits than its factorization.

40748321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 40748321 is about 6383.4411566176. The cubic root of 40748321 is about 344.1147112706.

The spelling of 40748321 in words is "forty million, seven hundred forty-eight thousand, three hundred twenty-one".