449135625420 has 36 divisors (see below), whose sum is σ = 1362378064320. Its totient is φ = 119769500064.

The previous prime is 449135625397. The next prime is 449135625443. The reversal of 449135625420 is 24526531944.

449135625420 is a `hidden beast` number, since 4 + 4 + 9 + 13 + 5 + 625 + 4 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (449135625397) and next prime (449135625443).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 1247598780 + ... + 1247599139.

It is an arithmetic number, because the mean of its divisors is an integer number (37843835120).

Almost surely, 2^449135625420 is an apocalyptic number.

It is an amenable number.

449135625420 is an abundant number, since it is smaller than the sum of its proper divisors (913242438900).

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

449135625420 is a wasteful number, since it uses less digits than its factorization.

449135625420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495197934 (or 2495197929 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 449135625420 in words is "four hundred forty-nine billion, one hundred thirty-five million, six hundred twenty-five thousand, four hundred twenty".