402940724573 has 2 divisors, whose sum is σ = 402940724574. Its totient is φ = 402940724572.

The previous prime is 402940724533. The next prime is 402940724581. The reversal of 402940724573 is 375427049204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305170066084 + 97770658489 = 552422^2 + 312683^2 .

It is a cyclic number.

It is not a de Polignac number, because 402940724573 - 2²⁴ = 402923947357 is a prime.

It is a super-2 number, since 2×402940724573² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402940724533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201470362286 + 201470362287.

It is an arithmetic number, because the mean of its divisors is an integer number (201470362287).

Almost surely, 2^402940724573 is an apocalyptic number.

It is an amenable number.

402940724573 is a deficient number, since it is larger than the sum of its proper divisors (1).

402940724573 is an equidigital number, since it uses as much as digits as its factorization.

402940724573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 402940724573 in words is "four hundred two billion, nine hundred forty million, seven hundred twenty-four thousand, five hundred seventy-three".