47019830 has 64 divisors (see below), whose sum is σ = 100590336. Its totient is φ = 15600000.

The previous prime is 47019803. The next prime is 47019853. The reversal of 47019830 is 3891074.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187205 + ... + 187455.

It is an arithmetic number, because the mean of its divisors is an integer number (1571724).

Almost surely, 2^47019830 is an apocalyptic number.

47019830 is an abundant number, since it is smaller than the sum of its proper divisors (53570506).

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

47019830 is a wasteful number, since it uses less digits than its factorization.

47019830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 47019830 is about 6857.1006992752. The cubic root of 47019830 is about 360.9333547933.

The spelling of 47019830 in words is "forty-seven million, nineteen thousand, eight hundred thirty".