1449155340 has 48 divisors (see below), whose sum is σ = 4508484960. Its totient is φ = 386441280.

The previous prime is 1449155299. The next prime is 1449155347. The reversal of 1449155340 is 435519441.

It is a happy number.

1449155340 is a `hidden beast` number, since 14 + 4 + 91 + 553 + 4 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1449155295 and 1449155304.

It is not an unprimeable number, because it can be changed into a prime (1449155347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1341271 + ... + 1342350.

It is an arithmetic number, because the mean of its divisors is an integer number (93926770).

Almost surely, 2^1449155340 is an apocalyptic number.

1449155340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1449155340 is an abundant number, since it is smaller than the sum of its proper divisors (3059329620).

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

1449155340 is a wasteful number, since it uses less digits than its factorization.

1449155340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683639 (or 2683631 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1449155340 is about 38067.7729845075. The cubic root of 1449155340 is about 1131.6313763933.

The spelling of 1449155340 in words is "one billion, four hundred forty-nine million, one hundred fifty-five thousand, three hundred forty".