47266840 has 64 divisors (see below), whose sum is σ = 112492800. Its totient is φ = 17837952.

The previous prime is 47266837. The next prime is 47266841. The reversal of 47266840 is 4866274.

It is a self number, because there is not a number n which added to its sum of digits gives 47266840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47266841) 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 15 ways as a sum of consecutive naturals, for example, 76051 + ... + 76669.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^47266840 is an apocalyptic number.

47266840 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 47266840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56246400).

47266840 is an abundant number, since it is smaller than the sum of its proper divisors (65225960).

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

47266840 is a wasteful number, since it uses less digits than its factorization.

47266840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 47266840 is about 6875.0883630685. The cubic root of 47266840 is about 361.5642835151.

The spelling of 47266840 in words is "forty-seven million, two hundred sixty-six thousand, eight hundred forty".