47347440 has 80 divisors (see below), whose sum is σ = 167751168. Its totient is φ = 10821888.

The previous prime is 47347439. The next prime is 47347451. The reversal of 47347440 is 4474374.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12412 + ... + 15771.

Almost surely, 2^47347440 is an apocalyptic number.

47347440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47347440 is an abundant number, since it is smaller than the sum of its proper divisors (120403728).

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

47347440 is a wasteful number, since it uses less digits than its factorization.

47347440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28206 (or 28200 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 47347440 is about 6880.9476091597. The cubic root of 47347440 is about 361.7696814392.

The spelling of 47347440 in words is "forty-seven million, three hundred forty-seven thousand, four hundred forty".