2348379981 has 6 divisors (see below), whose sum is σ = 3392104430. Its totient is φ = 1565586648.

The previous prime is 2348379977. The next prime is 2348379989. The reversal of 2348379981 is 1899738432.

2348379981 is a `hidden beast` number, since 2 + 3 + 483 + 79 + 98 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1924225956 + 424154025 = 43866^2 + 20595^2 .

It is not a de Polignac number, because 2348379981 - 2² = 2348379977 is a prime.

It is a super-2 number, since 2×2348379981² = 11029777070323120722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2348379989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130465546 + ... + 130465563.

Almost surely, 2^2348379981 is an apocalyptic number.

It is an amenable number.

2348379981 is a deficient number, since it is larger than the sum of its proper divisors (1043724449).

2348379981 is a wasteful number, since it uses less digits than its factorization.

2348379981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260931115 (or 260931112 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 2348379981 is about 48460.0864733030. The cubic root of 2348379981 is about 1329.1973186294.

The spelling of 2348379981 in words is "two billion, three hundred forty-eight million, three hundred seventy-nine thousand, nine hundred eighty-one".