440083638544 has 45 divisors (see below), whose sum is σ = 937285741861. Its totient is φ = 200024749760.

The previous prime is 440083638523. The next prime is 440083638557. The reversal of 440083638544 is 445836380044.

The square root of 440083638544 is 663388.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13037072400 + 427046566144 = 114180^2 + 653488^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29181534 + ... + 29196610.

Almost surely, 2^440083638544 is an apocalyptic number.

440083638544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

440083638544 is the 663388-th square number.

It is an amenable number.

440083638544 is an abundant number, since it is smaller than the sum of its proper divisors (497202103317).

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

440083638544 is an frugal number, since it uses more digits than its factorization.

440083638544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30184 (or 15090 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 49.

Multiplying 440083638544 by its sum of digits (49), we get a square (21564098288656 = 4643716²).

The spelling of 440083638544 in words is "four hundred forty billion, eighty-three million, six hundred thirty-eight thousand, five hundred forty-four".