47440080 has 100 divisors (see below), whose sum is σ = 164788932. Its totient is φ = 12648960.

The previous prime is 47440073. The next prime is 47440091. The reversal of 47440080 is 8004474.

It can be written as a sum of positive squares in 2 ways, for example, as 4981824 + 42458256 = 2232^2 + 6516^2 .

It is a super-2 number, since 2×47440080² = 4501122380812800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2820 + ... + 10140.

Almost surely, 2^47440080 is an apocalyptic number.

47440080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47440080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82394466).

47440080 is an abundant number, since it is smaller than the sum of its proper divisors (117348852).

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

47440080 is a wasteful number, since it uses less digits than its factorization.

47440080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7346 (or 7331 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 47440080 is about 6887.6759505656. The cubic root of 47440080 is about 362.0054739056.

The spelling of 47440080 in words is "forty-seven million, four hundred forty thousand, eighty".