1449620064 has 120 divisors (see below), whose sum is σ = 4323887568. Its totient is φ = 476340480.

The previous prime is 1449620033. The next prime is 1449620069. The reversal of 1449620064 is 4600269441.

1449620064 is a `hidden beast` number, since 1 + 449 + 6 + 200 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449620069) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 180094 + ... + 187970.

Almost surely, 2^1449620064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1449620064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2161943784).

1449620064 is an abundant number, since it is smaller than the sum of its proper divisors (2874267504).

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

1449620064 is an equidigital number, since it uses as much as digits as its factorization.

1449620064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970 (or 7953 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1449620064 is about 38073.8763983916. The cubic root of 1449620064 is about 1131.7523296225.

The spelling of 1449620064 in words is "one billion, four hundred forty-nine million, six hundred twenty thousand, sixty-four".