47149320 has 32 divisors (see below), whose sum is σ = 141448320. Its totient is φ = 12573120.

The previous prime is 47149309. The next prime is 47149327. The reversal of 47149320 is 2394174.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (47149327) 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, 196336 + ... + 196575.

It is an arithmetic number, because the mean of its divisors is an integer number (4420260).

Almost surely, 2^47149320 is an apocalyptic number.

47149320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47149320 is an abundant number, since it is smaller than the sum of its proper divisors (94299000).

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

47149320 is a wasteful number, since it uses less digits than its factorization.

47149320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392925 (or 392921 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 47149320 is about 6866.5362447161. The cubic root of 47149320 is about 361.2643812396.

The spelling of 47149320 in words is "forty-seven million, one hundred forty-nine thousand, three hundred twenty".