402340262247 has 288 divisors, whose sum is σ = 776631877632. Its totient is φ = 194893776000.

The previous prime is 402340262243. The next prime is 402340262249. The reversal of 402340262247 is 742262043204.

402340262247 is a `hidden beast` number, since 4 + 0 + 2 + 3 + 402 + 6 + 2 + 247 = 666.

It is not a de Polignac number, because 402340262247 - 2² = 402340262243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402340262243) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3168033498 + ... + 3168033624.

It is an arithmetic number, because the mean of its divisors is an integer number (2696638464).

Almost surely, 2^402340262247 is an apocalyptic number.

402340262247 is a deficient number, since it is larger than the sum of its proper divisors (374291615385).

402340262247 is a wasteful number, since it uses less digits than its factorization.

402340262247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 36.

The spelling of 402340262247 in words is "four hundred two billion, three hundred forty million, two hundred sixty-two thousand, two hundred forty-seven".