47031400 has 48 divisors (see below), whose sum is σ = 117765900. Its totient is φ = 17364480.

The previous prime is 47031373. The next prime is 47031407. The reversal of 47031400 is 413074.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 19131876 + 27899524 = 4374^2 + 5282^2 .

It is not an unprimeable number, because it can be changed into a prime (47031407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6445 + ... + 11644.

Almost surely, 2^47031400 is an apocalyptic number.

47031400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47031400 is an abundant number, since it is smaller than the sum of its proper divisors (70734500).

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

47031400 is a wasteful number, since it uses less digits than its factorization.

47031400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18118 (or 18109 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 47031400 is about 6857.9442984031. The cubic root of 47031400 is about 360.9629568884.

Adding to 47031400 its reverse (413074), we get a palindrome (47444474).

The spelling of 47031400 in words is "forty-seven million, thirty-one thousand, four hundred".