2401969 has 2 divisors, whose sum is σ = 2401970. Its totient is φ = 2401968.

The previous prime is 2401967. The next prime is 2401991. The reversal of 2401969 is 9691042.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1721344 + 680625 = 1312^2 + 825^2 .

It is a cyclic number.

It is not a de Polignac number, because 2401969 - 2¹ = 2401967 is a prime.

It is a super-2 number, since 2×2401969² = 11538910153922, which contains 22 as substring.

Together with 2401967, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2401969.

It is not a weakly prime, because it can be changed into another prime (2401967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200984 + 1200985.

It is an arithmetic number, because the mean of its divisors is an integer number (1200985).

2^2401969 is an apocalyptic number.

It is an amenable number.

2401969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2401969 is an equidigital number, since it uses as much as digits as its factorization.

2401969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2401969 is about 1549.8287002117. The cubic root of 2401969 is about 133.9231942713.

It can be divided in two parts, 240 and 1969, that added together give a square (2209 = 47²).

The spelling of 2401969 in words is "two million, four hundred one thousand, nine hundred sixty-nine".