1440497952 has 48 divisors (see below), whose sum is σ = 4201454880. Its totient is φ = 480165696.

The previous prime is 1440497909. The next prime is 1440497953. The reversal of 1440497952 is 2597940441.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1440497898 and 1440497907.

It is not an unprimeable number, because it can be changed into a prime (1440497953) 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, 832758 + ... + 834485.

It is an arithmetic number, because the mean of its divisors is an integer number (87530310).

Almost surely, 2^1440497952 is an apocalyptic number.

1440497952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1440497952 is an abundant number, since it is smaller than the sum of its proper divisors (2760956928).

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

1440497952 is a wasteful number, since it uses less digits than its factorization.

1440497952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667262 (or 1667248 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1440497952 is about 37953.8924486014. The cubic root of 1440497952 is about 1129.3733837600.

The spelling of 1440497952 in words is "one billion, four hundred forty million, four hundred ninety-seven thousand, nine hundred fifty-two".