47194890 has 64 divisors (see below), whose sum is σ = 124104960. Its totient is φ = 11432960.

The previous prime is 47194877. The next prime is 47194891. The reversal of 47194890 is 9849174.

It is a super-2 number, since 2×47194890² = 4454715284224200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47194891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13195 + ... + 16385.

It is an arithmetic number, because the mean of its divisors is an integer number (1939140).

Almost surely, 2^47194890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47194890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62052480).

47194890 is an abundant number, since it is smaller than the sum of its proper divisors (76910070).

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

47194890 is a wasteful number, since it uses less digits than its factorization.

47194890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 47194890 is about 6869.8537102328. The cubic root of 47194890 is about 361.3807315702.

It can be divided in two parts, 47194 and 890, that added together give a palindrome (48084).

The spelling of 47194890 in words is "forty-seven million, one hundred ninety-four thousand, eight hundred ninety".