2261129748 has 48 divisors (see below), whose sum is σ = 5351324160. Its totient is φ = 743012064.

The previous prime is 2261129743. The next prime is 2261129753. The reversal of 2261129748 is 8479211622.

It is an interprime number because it is at equal distance from previous prime (2261129743) and next prime (2261129753).

It is a super-2 number, since 2×2261129748² = 10225415474581087008, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261129743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276543 + ... + 284601.

It is an arithmetic number, because the mean of its divisors is an integer number (111485920).

Almost surely, 2^2261129748 is an apocalyptic number.

It is an amenable number.

2261129748 is an abundant number, since it is smaller than the sum of its proper divisors (3090194412).

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

2261129748 is a wasteful number, since it uses less digits than its factorization.

2261129748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8396 (or 8394 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 2261129748 is about 47551.3380253385. The cubic root of 2261129748 is about 1312.5277511048.

The spelling of 2261129748 in words is "two billion, two hundred sixty-one million, one hundred twenty-nine thousand, seven hundred forty-eight".