449219187400 has 48 divisors (see below), whose sum is σ = 1056169872900. Its totient is φ = 177668705280.

The previous prime is 449219187383. The next prime is 449219187419. The reversal of 449219187400 is 4781912944.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 212305306756 + 236913880644 = 460766^2 + 486738^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12600717 + ... + 12636316.

Almost surely, 2^449219187400 is an apocalyptic number.

449219187400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449219187400 is an abundant number, since it is smaller than the sum of its proper divisors (606950685500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449219187400 is a wasteful number, since it uses less digits than its factorization.

449219187400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25237138 (or 25237129 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 449219187400 in words is "four hundred forty-nine billion, two hundred nineteen million, one hundred eighty-seven thousand, four hundred".