1447961440 has 48 divisors (see below), whose sum is σ = 3423098448. Its totient is φ = 578797056.

The previous prime is 1447961429. The next prime is 1447961461. The reversal of 1447961440 is 441697441.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 1447961393 and 1447961402.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 427594 + ... + 430966.

It is an arithmetic number, because the mean of its divisors is an integer number (71314551).

Almost surely, 2^1447961440 is an apocalyptic number.

1447961440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1447961440 is an abundant number, since it is smaller than the sum of its proper divisors (1975137008).

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

1447961440 is a wasteful number, since it uses less digits than its factorization.

1447961440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071 (or 6063 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1447961440 is about 38052.0885103564. The cubic root of 1447961440 is about 1131.3205226936.

The spelling of 1447961440 in words is "one billion, four hundred forty-seven million, nine hundred sixty-one thousand, four hundred forty".