47299540 has 24 divisors (see below), whose sum is σ = 100212840. Its totient is φ = 18751488.

The previous prime is 47299537. The next prime is 47299543. The reversal of 47299540 is 4599274.

It is an interprime number because it is at equal distance from previous prime (47299537) and next prime (47299543).

It can be written as a sum of positive squares in 4 ways, for example, as 20164 + 47279376 = 142^2 + 6876^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47299493 and 47299502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47299543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8205 + ... + 12724.

It is an arithmetic number, because the mean of its divisors is an integer number (4175535).

Almost surely, 2^47299540 is an apocalyptic number.

It is an amenable number.

47299540 is an abundant number, since it is smaller than the sum of its proper divisors (52913300).

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

47299540 is a wasteful number, since it uses less digits than its factorization.

47299540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21051 (or 21049 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 47299540 is about 6877.4661031517. The cubic root of 47299540 is about 361.6476430587.

The spelling of 47299540 in words is "forty-seven million, two hundred ninety-nine thousand, five hundred forty".