440452121 has 8 divisors (see below), whose sum is σ = 447093504. Its totient is φ = 433823040.

The previous prime is 440452109. The next prime is 440452151. The reversal of 440452121 is 121254044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440452121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440452151) 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, 89696 + ... + 94478.

It is an arithmetic number, because the mean of its divisors is an integer number (55886688).

Almost surely, 2^440452121 is an apocalyptic number.

It is an amenable number.

440452121 is a deficient number, since it is larger than the sum of its proper divisors (6641383).

440452121 is a wasteful number, since it uses less digits than its factorization.

440452121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6151.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 440452121 is about 20986.9512078339. The cubic root of 440452121 is about 760.8509173167.

The spelling of 440452121 in words is "four hundred forty million, four hundred fifty-two thousand, one hundred twenty-one".