681272274 has 8 divisors (see below), whose sum is σ = 1362544560. Its totient is φ = 227090756.

The previous prime is 681272269. The next prime is 681272279. The reversal of 681272274 is 472272186.

681272274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (681272269) and next prime (681272279).

It is a sphenic number, since it is the product of 3 distinct primes.

681272274 is an admirable number.

It is a super-2 number, since 2×681272274² = 928263822642262152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (681272279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56772684 + ... + 56772695.

It is an arithmetic number, because the mean of its divisors is an integer number (170318070).

Almost surely, 2^681272274 is an apocalyptic number.

681272274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

681272274 is a wasteful number, since it uses less digits than its factorization.

681272274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113545384.

The product of its digits is 75264, while the sum is 39.

The square root of 681272274 is about 26101.1929612422. The cubic root of 681272274 is about 879.9140213864.

The spelling of 681272274 in words is "six hundred eighty-one million, two hundred seventy-two thousand, two hundred seventy-four".