1399838628490 has 64 divisors (see below), whose sum is σ = 2634872832000. Its totient is φ = 534819205440.

The previous prime is 1399838628481. The next prime is 1399838628523. The reversal of 1399838628490 is 948268389931.

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, 79804141 + ... + 79821679.

It is an arithmetic number, because the mean of its divisors is an integer number (41169888000).

Almost surely, 2^{1399838628490} is an apocalyptic number.

1399838628490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1399838628490 is a deficient number, since it is larger than the sum of its proper divisors (1235034203510).

1399838628490 is a wasteful number, since it uses less digits than its factorization.

1399838628490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20915.

The product of its (nonzero) digits is 161243136, while the sum is 70.

The spelling of 1399838628490 in words is "one trillion, three hundred ninety-nine billion, eight hundred thirty-eight million, six hundred twenty-eight thousand, four hundred ninety".