2434401661 has 2 divisors, whose sum is σ = 2434401662. Its totient is φ = 2434401660.

The previous prime is 2434401653. The next prime is 2434401667. The reversal of 2434401661 is 1661044342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2132684761 + 301716900 = 46181^2 + 17370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2434401661 - 2³ = 2434401653 is a prime.

It is a super-2 number, since 2×2434401661² = 11852622894159117842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2434401667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1217200830 + 1217200831.

It is an arithmetic number, because the mean of its divisors is an integer number (1217200831).

Almost surely, 2^2434401661 is an apocalyptic number.

It is an amenable number.

2434401661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2434401661 is an equidigital number, since it uses as much as digits as its factorization.

2434401661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2434401661 is about 49339.6560689269. The cubic root of 2434401661 is about 1345.2326884218.

The spelling of 2434401661 in words is "two billion, four hundred thirty-four million, four hundred one thousand, six hundred sixty-one".