47423520 has 72 divisors (see below), whose sum is σ = 161837676. Its totient is φ = 12645888.

The previous prime is 47423507. The next prime is 47423533. The reversal of 47423520 is 2532474.

It is an interprime number because it is at equal distance from previous prime (47423507) and next prime (47423533).

It can be written as a sum of positive squares in 2 ways, for example, as 41835024 + 5588496 = 6468^2 + 2364^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15027 + ... + 17906.

Almost surely, 2^47423520 is an apocalyptic number.

47423520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47423520 is an abundant number, since it is smaller than the sum of its proper divisors (114414156).

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

47423520 is a wasteful number, since it uses less digits than its factorization.

47423520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32954 (or 32943 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 47423520 is about 6886.4736984904. The cubic root of 47423520 is about 361.9633470210.

Adding to 47423520 its reverse (2532474), we get a palindrome (49955994).

The spelling of 47423520 in words is "forty-seven million, four hundred twenty-three thousand, five hundred twenty".