1472205644 has 72 divisors (see below), whose sum is σ = 3376060128. Its totient is φ = 548121600.

The previous prime is 1472205613. The next prime is 1472205667. The reversal of 1472205644 is 4465022741.

1472205644 = 471² + 472² + ... + 1653².

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 71294 + ... + 89594.

It is an arithmetic number, because the mean of its divisors is an integer number (46889724).

Almost surely, 2^1472205644 is an apocalyptic number.

1472205644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1472205644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1688030064).

1472205644 is an abundant number, since it is smaller than the sum of its proper divisors (1903854484).

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

1472205644 is a wasteful number, since it uses less digits than its factorization.

1472205644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18355 (or 18340 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 1472205644 is about 38369.3320765426. The cubic root of 1472205644 is about 1137.5997626788.

The spelling of 1472205644 in words is "one billion, four hundred seventy-two million, two hundred five thousand, six hundred forty-four".