2102939748 has 72 divisors (see below), whose sum is σ = 6542489408. Its totient is φ = 554620608.

The previous prime is 2102939723. The next prime is 2102939759. The reversal of 2102939748 is 8479392012.

2102939748 is a `hidden beast` number, since 210 + 2 + 9 + 397 + 48 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317686 + ... + 324237.

Almost surely, 2^2102939748 is an apocalyptic number.

2102939748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2102939748 is an abundant number, since it is smaller than the sum of its proper divisors (4439549660).

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

2102939748 is a wasteful number, since it uses less digits than its factorization.

2102939748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641953 (or 641948 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 2102939748 is about 45857.8210123420. The cubic root of 2102939748 is about 1281.1764387574.

The spelling of 2102939748 in words is "two billion, one hundred two million, nine hundred thirty-nine thousand, seven hundred forty-eight".