1974402401 has 2 divisors, whose sum is σ = 1974402402. Its totient is φ = 1974402400.

The previous prime is 1974402379. The next prime is 1974402407. The reversal of 1974402401 is 1042044791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1348652176 + 625750225 = 36724^2 + 25015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1974402401 - 2⁶ = 1974402337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1974402407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987201200 + 987201201.

It is an arithmetic number, because the mean of its divisors is an integer number (987201201).

Almost surely, 2^1974402401 is an apocalyptic number.

It is an amenable number.

1974402401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974402401 is an equidigital number, since it uses as much as digits as its factorization.

1974402401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1974402401 is about 44434.2480638527. The cubic root of 1974402401 is about 1254.5227946062.

The spelling of 1974402401 in words is "one billion, nine hundred seventy-four million, four hundred two thousand, four hundred one".