47249320 has 32 divisors (see below), whose sum is σ = 107296200. Its totient is φ = 18724608.

The previous prime is 47249281. The next prime is 47249329. The reversal of 47249320 is 2394274.

It can be written as a sum of positive squares in 4 ways, for example, as 35784324 + 11464996 = 5982^2 + 3386^2 .

It is not an unprimeable number, because it can be changed into a prime (47249329) 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, 1059 + ... + 9778.

Almost surely, 2^47249320 is an apocalyptic number.

47249320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47249320 is an abundant number, since it is smaller than the sum of its proper divisors (60046880).

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

47249320 is a wasteful number, since it uses less digits than its factorization.

47249320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10957 (or 10953 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 47249320 is about 6873.8140795340. The cubic root of 47249320 is about 361.5196053357.

The spelling of 47249320 in words is "forty-seven million, two hundred forty-nine thousand, three hundred twenty".