449645625 has 180 divisors, whose sum is σ = 981023472. Its totient is φ = 196560000.

The previous prime is 449645543. The next prime is 449645629. The reversal of 449645625 is 526546944.

It is not a de Polignac number, because 449645625 - 2¹⁸ = 449383481 is a prime.

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

Its product of digits (1036800) is a multiple of the sum of its prime divisors (75).

It is not an unprimeable number, because it can be changed into a prime (449645629) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 10456854 + ... + 10456896.

Almost surely, 2^449645625 is an apocalyptic number.

449645625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

449645625 is an abundant number, since it is smaller than the sum of its proper divisors (531377847).

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

449645625 is a wasteful number, since it uses less digits than its factorization.

449645625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 75 counting only the distinct ones).

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

The square root of 449645625 is about 21204.8490916583. The cubic root of 449645625 is about 766.1082233409.

The spelling of 449645625 in words is "four hundred forty-nine million, six hundred forty-five thousand, six hundred twenty-five".