402573049 has 2 divisors, whose sum is σ = 402573050. Its totient is φ = 402573048.

The previous prime is 402573047. The next prime is 402573089. The reversal of 402573049 is 940375204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390773824 + 11799225 = 19768^2 + 3435^2 .

It is a cyclic number.

It is not a de Polignac number, because 402573049 - 2¹ = 402573047 is a prime.

Together with 402573047, it forms a pair of twin primes.

It is equal to p_21466087 and since 402573049 and 21466087 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (402573043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201286524 + 201286525.

It is an arithmetic number, because the mean of its divisors is an integer number (201286525).

Almost surely, 2^402573049 is an apocalyptic number.

It is an amenable number.

402573049 is a deficient number, since it is larger than the sum of its proper divisors (1).

402573049 is an equidigital number, since it uses as much as digits as its factorization.

402573049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 402573049 is about 20064.2231098042. The cubic root of 402573049 is about 738.3827898167.

The spelling of 402573049 in words is "four hundred two million, five hundred seventy-three thousand, forty-nine".