4400428429640 has 16 divisors (see below), whose sum is σ = 9900963966780. Its totient is φ = 1760171371840.

The previous prime is 4400428429627. The next prime is 4400428429717. The reversal of 4400428429640 is 469248240044.

It can be written as a sum of positive squares in 2 ways, for example, as 4391430389476 + 8998040164 = 2095574^2 + 94858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55005355331 + ... + 55005355410.

Almost surely, 2^{4400428429640} is an apocalyptic number.

4400428429640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4400428429640 is an abundant number, since it is smaller than the sum of its proper divisors (5500535537140).

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

4400428429640 is a wasteful number, since it uses less digits than its factorization.

4400428429640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110010710752 (or 110010710748 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 47.

The spelling of 4400428429640 in words is "four trillion, four hundred billion, four hundred twenty-eight million, four hundred twenty-nine thousand, six hundred forty".