1449457500 has 60 divisors (see below), whose sum is σ = 4226253416. Its totient is φ = 386520000.

The previous prime is 1449457489. The next prime is 1449457507. The reversal of 1449457500 is 57549441.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449457507) 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, 89131 + ... + 104130.

Almost surely, 2^1449457500 is an apocalyptic number.

1449457500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1449457500 is an abundant number, since it is smaller than the sum of its proper divisors (2776795916).

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

1449457500 is a wasteful number, since it uses less digits than its factorization.

1449457500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193288 (or 193271 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 1449457500 is about 38071.7414889311. The cubic root of 1449457500 is about 1131.7100222004.

The spelling of 1449457500 in words is "one billion, four hundred forty-nine million, four hundred fifty-seven thousand, five hundred".