47969280 has 176 divisors, whose sum is σ = 170965440. Its totient is φ = 12754944.

The previous prime is 47969261. The next prime is 47969287. The reversal of 47969280 is 8296974.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47969287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138067 + ... + 138413.

Almost surely, 2^47969280 is an apocalyptic number.

47969280 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 47969280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85482720).

47969280 is an abundant number, since it is smaller than the sum of its proper divisors (122996160).

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

47969280 is a wasteful number, since it uses less digits than its factorization.

47969280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 47969280 is about 6925.9858504043. The cubic root of 47969280 is about 363.3465715421.

The spelling of 47969280 in words is "forty-seven million, nine hundred sixty-nine thousand, two hundred eighty".