1440480477 has 8 divisors (see below), whose sum is σ = 1921235680. Its totient is φ = 960022800.

The previous prime is 1440480473. The next prime is 1440480493. The reversal of 1440480477 is 7740840441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1440480477 - 2² = 1440480473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440480473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62827 + ... + 82632.

It is an arithmetic number, because the mean of its divisors is an integer number (240154460).

Almost surely, 2^1440480477 is an apocalyptic number.

It is an amenable number.

1440480477 is a deficient number, since it is larger than the sum of its proper divisors (480755203).

1440480477 is a wasteful number, since it uses less digits than its factorization.

1440480477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148763.

The product of its (nonzero) digits is 100352, while the sum is 39.

The square root of 1440480477 is about 37953.6622343615. The cubic root of 1440480477 is about 1129.3688168486.

The spelling of 1440480477 in words is "one billion, four hundred forty million, four hundred eighty thousand, four hundred seventy-seven".