1004280401 has 2 divisors, whose sum is σ = 1004280402. Its totient is φ = 1004280400.

The previous prime is 1004280377. The next prime is 1004280439. The reversal of 1004280401 is 1040824001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 924160000 + 80120401 = 30400^2 + 8951^2 .

It is a cyclic number.

It is not a de Polignac number, because 1004280401 - 2⁶ = 1004280337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1004280451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502140200 + 502140201.

It is an arithmetic number, because the mean of its divisors is an integer number (502140201).

Almost surely, 2^1004280401 is an apocalyptic number.

It is an amenable number.

1004280401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004280401 is an equidigital number, since it uses as much as digits as its factorization.

1004280401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1004280401 is about 31690.3834151624. The cubic root of 1004280401 is about 1001.4247694014.

The spelling of 1004280401 in words is "one billion, four million, two hundred eighty thousand, four hundred one".