402298140797 has 4 divisors (see below), whose sum is σ = 459769303776. Its totient is φ = 344826977820.

The previous prime is 402298140737. The next prime is 402298140847. The reversal of 402298140797 is 797041892204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402298140797 - 2¹⁰ = 402298139773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402298140737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28735581479 + ... + 28735581492.

It is an arithmetic number, because the mean of its divisors is an integer number (114942325944).

Almost surely, 2^402298140797 is an apocalyptic number.

It is an amenable number.

402298140797 is a deficient number, since it is larger than the sum of its proper divisors (57471162979).

402298140797 is an equidigital number, since it uses as much as digits as its factorization.

402298140797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57471162978.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 402298140797 in words is "four hundred two billion, two hundred ninety-eight million, one hundred forty thousand, seven hundred ninety-seven".