1401984625 has 16 divisors (see below), whose sum is σ = 1756175616. Its totient is φ = 1117422000.

The previous prime is 1401984587. The next prime is 1401984631. The reversal of 1401984625 is 5264891041.

It is not a de Polignac number, because 1401984625 - 2¹⁹ = 1401460337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13182 + ... + 54568.

It is an arithmetic number, because the mean of its divisors is an integer number (109760976).

Almost surely, 2^1401984625 is an apocalyptic number.

It is an amenable number.

1401984625 is a deficient number, since it is larger than the sum of its proper divisors (354190991).

1401984625 is an equidigital number, since it uses as much as digits as its factorization.

1401984625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41673 (or 41663 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1401984625 is about 37443.0851426535. The cubic root of 1401984625 is about 1119.2173063116.

The spelling of 1401984625 in words is "one billion, four hundred one million, nine hundred eighty-four thousand, six hundred twenty-five".