47621280 has 96 divisors (see below), whose sum is σ = 171448704. Its totient is φ = 10884096.

The previous prime is 47621269. The next prime is 47621303. The reversal of 47621280 is 8212674.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3727 + ... + 10446.

It is an arithmetic number, because the mean of its divisors is an integer number (1785924).

Almost surely, 2^47621280 is an apocalyptic number.

47621280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47621280 is an abundant number, since it is smaller than the sum of its proper divisors (123827424).

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

47621280 is a wasteful number, since it uses less digits than its factorization.

47621280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14198 (or 14190 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 47621280 is about 6900.8173428950. The cubic root of 47621280 is about 362.4657882893.

The spelling of 47621280 in words is "forty-seven million, six hundred twenty-one thousand, two hundred eighty".