450140779 has 8 divisors (see below), whose sum is σ = 504335088. Its totient is φ = 398158560.

The previous prime is 450140749. The next prime is 450140791. The reversal of 450140779 is 977041054.

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 450140779 - 2¹⁵ = 450108011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450140749) 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, 552592 + ... + 553405.

It is an arithmetic number, because the mean of its divisors is an integer number (63041886).

Almost surely, 2^450140779 is an apocalyptic number.

450140779 is a deficient number, since it is larger than the sum of its proper divisors (54194309).

450140779 is a wasteful number, since it uses less digits than its factorization.

450140779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106045.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 450140779 is about 21216.5213689709. The cubic root of 450140779 is about 766.3893353770.

The spelling of 450140779 in words is "four hundred fifty million, one hundred forty thousand, seven hundred seventy-nine".