440434210440 has 128 divisors (see below), whose sum is σ = 1523423842560. Its totient is φ = 99779764224.

The previous prime is 440434210421. The next prime is 440434210483. The reversal of 440434210440 is 44012434044.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 440434210398 and 440434210407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2225109 + ... + 2414948.

It is an arithmetic number, because the mean of its divisors is an integer number (11901748770).

Almost surely, 2^440434210440 is an apocalyptic number.

440434210440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440434210440 is an abundant number, since it is smaller than the sum of its proper divisors (1082989632120).

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

440434210440 is a wasteful number, since it uses less digits than its factorization.

440434210440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4640191 (or 4640187 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 440434210440 its reverse (44012434044), we get a palindrome (484446644484).

The spelling of 440434210440 in words is "four hundred forty billion, four hundred thirty-four million, two hundred ten thousand, four hundred forty".