1445980401 has 6 divisors (see below), whose sum is σ = 2088638370. Its totient is φ = 963986928.

The previous prime is 1445980369. The next prime is 1445980421. The reversal of 1445980401 is 1040895441.

It can be written as a sum of positive squares in only one way, i.e., 1444076001 + 1904400 = 38001^2 + 1380^2 .

It is not a de Polignac number, because 1445980401 - 2⁵ = 1445980369 is a prime.

It is a super-2 number, since 2×1445980401² = 4181718640152241602, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1445980421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80332236 + ... + 80332253.

It is an arithmetic number, because the mean of its divisors is an integer number (348106395).

Almost surely, 2^1445980401 is an apocalyptic number.

It is an amenable number.

1445980401 is a deficient number, since it is larger than the sum of its proper divisors (642657969).

1445980401 is a wasteful number, since it uses less digits than its factorization.

1445980401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160664495 (or 160664492 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1445980401 is about 38026.0489796140. The cubic root of 1445980401 is about 1130.8043457447.

The spelling of 1445980401 in words is "one billion, four hundred forty-five million, nine hundred eighty thousand, four hundred one".