2646760398 has 16 divisors (see below), whose sum is σ = 5303031120. Its totient is φ = 880668416.

The previous prime is 2646760393. The next prime is 2646760421. The reversal of 2646760398 is 8930676462.

It is a happy number.

It is a super-2 number, since 2×2646760398² = 14010681208842236808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2646760398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646760393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392643 + ... + 399326.

It is an arithmetic number, because the mean of its divisors is an integer number (331439445).

Almost surely, 2^2646760398 is an apocalyptic number.

2646760398 is an abundant number, since it is smaller than the sum of its proper divisors (2656270722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2646760398 is a wasteful number, since it uses less digits than its factorization.

2646760398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792531.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The square root of 2646760398 is about 51446.6752861640. The cubic root of 2646760398 is about 1383.2633679941.

The spelling of 2646760398 in words is "two billion, six hundred forty-six million, seven hundred sixty thousand, three hundred ninety-eight".