1440466472 has 8 divisors (see below), whose sum is σ = 2700874650. Its totient is φ = 720233232.

The previous prime is 1440466459. The next prime is 1440466477. The reversal of 1440466472 is 2746640441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1289815396 + 150651076 = 35914^2 + 12274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1440466472² = 4149887313912253568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1440466477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90029147 + ... + 90029162.

Almost surely, 2^1440466472 is an apocalyptic number.

It is an amenable number.

1440466472 is a deficient number, since it is larger than the sum of its proper divisors (1260408178).

1440466472 is a wasteful number, since it uses less digits than its factorization.

1440466472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180058315 (or 180058311 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 1440466472 is about 37953.4777326136. The cubic root of 1440466472 is about 1129.3651567593.

The spelling of 1440466472 in words is "one billion, four hundred forty million, four hundred sixty-six thousand, four hundred seventy-two".