2990401 has 2 divisors, whose sum is σ = 2990402. Its totient is φ = 2990400.

The previous prime is 2990381. The next prime is 2990423. The reversal of 2990401 is 1040992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2972176 + 18225 = 1724^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 2990401 - 2⁵ = 2990369 is a prime.

2990401 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2990441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1495200 + 1495201.

It is an arithmetic number, because the mean of its divisors is an integer number (1495201).

2^2990401 is an apocalyptic number.

It is an amenable number.

2990401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2990401 is an equidigital number, since it uses as much as digits as its factorization.

2990401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2990401 is about 1729.2775948355. The cubic root of 2990401 is about 144.0709687475.

The spelling of 2990401 in words is "two million, nine hundred ninety thousand, four hundred one".