1408744437428 has 12 divisors (see below), whose sum is σ = 2468298278880. Its totient is φ = 703516357752.

The previous prime is 1408744437421. The next prime is 1408744437431. The reversal of 1408744437428 is 8247344478041.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1408744437421) 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, 213961538 + ... + 213968121.

It is an arithmetic number, because the mean of its divisors is an integer number (205691523240).

Almost surely, 2^{1408744437428} is an apocalyptic number.

It is an amenable number.

1408744437428 is a deficient number, since it is larger than the sum of its proper divisors (1059553841452).

1408744437428 is a wasteful number, since it uses less digits than its factorization.

1408744437428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427930486 (or 427930484 counting only the distinct ones).

The product of its (nonzero) digits is 19267584, while the sum is 56.

The spelling of 1408744437428 in words is "one trillion, four hundred eight billion, seven hundred forty-four million, four hundred thirty-seven thousand, four hundred twenty-eight".