1401538368 has 56 divisors (see below), whose sum is σ = 3755217280. Its totient is φ = 461260800.

The previous prime is 1401538351. The next prime is 1401538381. The reversal of 1401538368 is 8638351041.

It is a super-2 number, since 2×1401538368² = 3928619593952206848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31033 + ... + 61368.

Almost surely, 2^1401538368 is an apocalyptic number.

It is an amenable number.

1401538368 is an abundant number, since it is smaller than the sum of its proper divisors (2353678912).

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

1401538368 is an equidigital number, since it uses as much as digits as its factorization.

1401538368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92495 (or 92485 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 1401538368 is about 37437.1255306814. The cubic root of 1401538368 is about 1119.0985433449.

The spelling of 1401538368 in words is "one billion, four hundred one million, five hundred thirty-eight thousand, three hundred sixty-eight".