1449420540 has 48 divisors (see below), whose sum is σ = 4061770272. Its totient is φ = 386189056.

The previous prime is 1449420517. The next prime is 1449420563. The reversal of 1449420540 is 450249441.

It is an interprime number because it is at equal distance from previous prime (1449420517) and next prime (1449420563).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67162 + ... + 86078.

It is an arithmetic number, because the mean of its divisors is an integer number (84620214).

Almost surely, 2^1449420540 is an apocalyptic number.

1449420540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1449420540 is an abundant number, since it is smaller than the sum of its proper divisors (2612349732).

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

1449420540 is a wasteful number, since it uses less digits than its factorization.

1449420540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20206 (or 20204 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 1449420540 is about 38071.2560864493. The cubic root of 1449420540 is about 1131.7004028870.

Adding to 1449420540 its reverse (450249441), we get a palindrome (1899669981).

The spelling of 1449420540 in words is "one billion, four hundred forty-nine million, four hundred twenty thousand, five hundred forty".