47190000 has 300 divisors, whose sum is σ = 180323528. Its totient is φ = 10560000.

The previous prime is 47189983. The next prime is 47190037. The reversal of 47190000 is 9174.

It is a tau number, because it is divible by the number of its divisors (300).

It is a super-2 number, since 2×47190000² = 4453792200000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3629994 + ... + 3630006.

Almost surely, 2^47190000 is an apocalyptic number.

47190000 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 47190000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90161764).

47190000 is an abundant number, since it is smaller than the sum of its proper divisors (133133528).

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

47190000 is a wasteful number, since it uses less digits than its factorization.

47190000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 47190000 is about 6869.4977982382. The cubic root of 47190000 is about 361.3682499024.

Adding to 47190000 its reverse (9174), we get a palindrome (47199174).

The spelling of 47190000 in words is "forty-seven million, one hundred ninety thousand".