440621472 has 24 divisors (see below), whose sum is σ = 1156631616. Its totient is φ = 146873792.

The previous prime is 440621411. The next prime is 440621479. The reversal of 440621472 is 274126044.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (440621479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2294808 + ... + 2294999.

It is an arithmetic number, because the mean of its divisors is an integer number (48192984).

Almost surely, 2^440621472 is an apocalyptic number.

It is an amenable number.

440621472 is an abundant number, since it is smaller than the sum of its proper divisors (716010144).

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

440621472 is a wasteful number, since it uses less digits than its factorization.

440621472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589820 (or 4589812 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 440621472 is about 20990.9854937780. The cubic root of 440621472 is about 760.9484189119.

It can be divided in two parts, 4406 and 21472, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 440621472 in words is "four hundred forty million, six hundred twenty-one thousand, four hundred seventy-two".