47436040 has 32 divisors (see below), whose sum is σ = 108486360. Its totient is φ = 18662400.

The previous prime is 47436031. The next prime is 47436041. The reversal of 47436040 is 4063474.

It can be written as a sum of positive squares in 4 ways, for example, as 17994564 + 29441476 = 4242^2 + 5426^2 .

It is not an unprimeable number, because it can be changed into a prime (47436041) 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, 7281 + ... + 12160.

Almost surely, 2^47436040 is an apocalyptic number.

47436040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47436040 is an abundant number, since it is smaller than the sum of its proper divisors (61050320).

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

47436040 is a wasteful number, since it uses less digits than its factorization.

47436040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19513 (or 19509 counting only the distinct ones).

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

The square root of 47436040 is about 6887.3826668772. The cubic root of 47436040 is about 361.9951974781.

The spelling of 47436040 in words is "forty-seven million, four hundred thirty-six thousand, forty".