47453780 has 36 divisors (see below), whose sum is σ = 109541460. Its totient is φ = 17255040.

The previous prime is 47453779. The next prime is 47453797. The reversal of 47453780 is 8735474.

It can be written as a sum of positive squares in 2 ways, for example, as 37136836 + 10316944 = 6094^2 + 3212^2 .

It is a super-2 number, since 2×47453780² = 4503722472576800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7385 + ... + 12224.

Almost surely, 2^47453780 is an apocalyptic number.

It is an amenable number.

47453780 is an abundant number, since it is smaller than the sum of its proper divisors (62087680).

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

47453780 is a wasteful number, since it uses less digits than its factorization.

47453780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19640 (or 19627 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 47453780 is about 6888.6704087218. The cubic root of 47453780 is about 362.0403178439.

The spelling of 47453780 in words is "forty-seven million, four hundred fifty-three thousand, seven hundred eighty".