47210040 has 112 divisors (see below), whose sum is σ = 159359400. Its totient is φ = 12581568.

The previous prime is 47210021. The next prime is 47210047. The reversal of 47210040 is 4001274.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 47209995 and 47210022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47210047) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 28351 + ... + 29969.

Almost surely, 2^47210040 is an apocalyptic number.

47210040 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 47210040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79679700).

47210040 is an abundant number, since it is smaller than the sum of its proper divisors (112149360).

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

47210040 is a wasteful number, since it uses less digits than its factorization.

47210040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1629 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 47210040 is about 6870.9562653244. The cubic root of 47210040 is about 361.4193962954.

The spelling of 47210040 in words is "forty-seven million, two hundred ten thousand, forty".