47233840 has 40 divisors (see below), whose sum is σ = 110707200. Its totient is φ = 18740736.

The previous prime is 47233819. The next prime is 47233841. The reversal of 47233840 is 4833274.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×47233840² = 4462071282291200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47233841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7836 + ... + 12484.

It is an arithmetic number, because the mean of its divisors is an integer number (2767680).

Almost surely, 2^47233840 is an apocalyptic number.

47233840 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 47233840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55353600).

47233840 is an abundant number, since it is smaller than the sum of its proper divisors (63473360).

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

47233840 is a wasteful number, since it uses less digits than its factorization.

47233840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789 (or 4783 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 47233840 is about 6872.6879748756. The cubic root of 47233840 is about 361.4801202188.

The spelling of 47233840 in words is "forty-seven million, two hundred thirty-three thousand, eight hundred forty".