47276840 has 32 divisors (see below), whose sum is σ = 114556680. Its totient is φ = 17455872.

The previous prime is 47276837. The next prime is 47276843. The reversal of 47276840 is 4867274.

It is an interprime number because it is at equal distance from previous prime (47276837) and next prime (47276843).

It can be written as a sum of positive squares in 4 ways, for example, as 34128964 + 13147876 = 5842^2 + 3626^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47276794 and 47276803.

It is not an unprimeable number, because it can be changed into a prime (47276843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44939 + ... + 45978.

Almost surely, 2^47276840 is an apocalyptic number.

47276840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47276840 is an abundant number, since it is smaller than the sum of its proper divisors (67279840).

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

47276840 is a wasteful number, since it uses less digits than its factorization.

47276840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90941 (or 90937 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 47276840 is about 6875.8155879866. The cubic root of 47276840 is about 361.5897798101.

The spelling of 47276840 in words is "forty-seven million, two hundred seventy-six thousand, eight hundred forty".