402240301949 has 2 divisors, whose sum is σ = 402240301950. Its totient is φ = 402240301948.

The previous prime is 402240301919. The next prime is 402240301951. The reversal of 402240301949 is 949103042204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401933176324 + 307125625 = 633982^2 + 17525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402240301949 is a prime.

Together with 402240301951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402240301919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201120150974 + 201120150975.

It is an arithmetic number, because the mean of its divisors is an integer number (201120150975).

Almost surely, 2^402240301949 is an apocalyptic number.

It is an amenable number.

402240301949 is a deficient number, since it is larger than the sum of its proper divisors (1).

402240301949 is an equidigital number, since it uses as much as digits as its factorization.

402240301949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 402240301949 in words is "four hundred two billion, two hundred forty million, three hundred one thousand, nine hundred forty-nine".