47800440 has 144 divisors (see below), whose sum is σ = 163046520. Its totient is φ = 12144000.

The previous prime is 47800429. The next prime is 47800507. The reversal of 47800440 is 4400874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 190315 + ... + 190565.

Almost surely, 2^47800440 is an apocalyptic number.

47800440 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 47800440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81523260).

47800440 is an abundant number, since it is smaller than the sum of its proper divisors (115246080).

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

47800440 is a wasteful number, since it uses less digits than its factorization.

47800440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 47800440 is about 6913.7862275312. The cubic root of 47800440 is about 362.9197737238.

The spelling of 47800440 in words is "forty-seven million, eight hundred thousand, four hundred forty".