1401488641 has 12 divisors (see below), whose sum is σ = 1682895360. Its totient is φ = 1162523880.

The previous prime is 1401488573. The next prime is 1401488651. The reversal of 1401488641 is 1468841041.

It is a de Polignac number, because none of the positive numbers 2^k-1401488641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401488641.

It is not an unprimeable number, because it can be changed into a prime (1401488651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459801 + ... + 462838.

It is an arithmetic number, because the mean of its divisors is an integer number (140241280).

Almost surely, 2^1401488641 is an apocalyptic number.

It is an amenable number.

1401488641 is a deficient number, since it is larger than the sum of its proper divisors (281406719).

1401488641 is an equidigital number, since it uses as much as digits as its factorization.

1401488641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922684 (or 922677 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 1401488641 is about 37436.4613845914. The cubic root of 1401488641 is about 1119.0853078715.

The spelling of 1401488641 in words is "one billion, four hundred one million, four hundred eighty-eight thousand, six hundred forty-one".