2308971398 has 4 divisors (see below), whose sum is σ = 3463457100. Its totient is φ = 1154485698.

The previous prime is 2308971391. The next prime is 2308971407. The reversal of 2308971398 is 8931798032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2308971391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577242848 + ... + 577242851.

It is an arithmetic number, because the mean of its divisors is an integer number (865864275).

Almost surely, 2^2308971398 is an apocalyptic number.

2308971398 is a deficient number, since it is larger than the sum of its proper divisors (1154485702).

2308971398 is a wasteful number, since it uses less digits than its factorization.

2308971398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154485701.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 2308971398 is about 48051.7574912718. The cubic root of 2308971398 is about 1321.7201705164.

The spelling of 2308971398 in words is "two billion, three hundred eight million, nine hundred seventy-one thousand, three hundred ninety-eight".