449694436 has 27 divisors (see below), whose sum is σ = 824457193. Its totient is φ = 214604720.

The previous prime is 449694431. The next prime is 449694457. The reversal of 449694436 is 634496944.

The square root of 449694436 is 21206.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 144144036 + 305550400 = 12006^2 + 17480^2 .

It is a Duffinian number.

Its product of digits (2239488) is a multiple of the sum of its prime divisors (486).

It is a self number, because there is not a number n which added to its sum of digits gives 449694436.

It is not an unprimeable number, because it can be changed into a prime (449694431) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 975246 + ... + 975706.

Almost surely, 2^449694436 is an apocalyptic number.

449694436 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

449694436 is the 21206-th square number.

It is an amenable number.

449694436 is a deficient number, since it is larger than the sum of its proper divisors (374762757).

449694436 is an equidigital number, since it uses as much as digits as its factorization.

449694436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 486 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 49.

The cubic root of 449694436 is about 766.1359438045.

Multiplying 449694436 by its sum of digits (49), we get a square (22035027364 = 148442²).

The spelling of 449694436 in words is "four hundred forty-nine million, six hundred ninety-four thousand, four hundred thirty-six".