47356240 has 40 divisors (see below), whose sum is σ = 110751840. Its totient is φ = 18830976.

The previous prime is 47356187. The next prime is 47356279. The reversal of 47356240 is 4265374.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×47356240² = 4485226933875200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 12667 + ... + 15973.

It is an arithmetic number, because the mean of its divisors is an integer number (2768796).

Almost surely, 2^47356240 is an apocalyptic number.

47356240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47356240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55375920).

47356240 is an abundant number, since it is smaller than the sum of its proper divisors (63395600).

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

47356240 is a wasteful number, since it uses less digits than its factorization.

47356240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499 (or 3493 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 47356240 is about 6881.5870262607. The cubic root of 47356240 is about 361.7920929007.

The spelling of 47356240 in words is "forty-seven million, three hundred fifty-six thousand, two hundred forty".