47406340 has 12 divisors (see below), whose sum is σ = 99553356. Its totient is φ = 18962528.

The previous prime is 47406313. The next prime is 47406343. The reversal of 47406340 is 4360474.

It can be written as a sum of positive squares in 2 ways, for example, as 34503876 + 12902464 = 5874^2 + 3592^2 .

It is a super-2 number, since 2×47406340² = 4494722144391200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47406299 and 47406308.

It is not an unprimeable number, because it can be changed into a prime (47406343) 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, 1185139 + ... + 1185178.

It is an arithmetic number, because the mean of its divisors is an integer number (8296113).

Almost surely, 2^47406340 is an apocalyptic number.

It is an amenable number.

47406340 is an abundant number, since it is smaller than the sum of its proper divisors (52147016).

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

47406340 is a wasteful number, since it uses less digits than its factorization.

47406340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370326 (or 2370324 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 47406340 is about 6885.2262126963. The cubic root of 47406340 is about 361.9196325563.

The spelling of 47406340 in words is "forty-seven million, four hundred six thousand, three hundred forty".