27424980 has 216 divisors, whose sum is σ = 99197280. Its totient is φ = 6298560.

The previous prime is 27424979. The next prime is 27424997. The reversal of 27424980 is 8942472.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1443411 + ... + 1443429.

Almost surely, 2^27424980 is an apocalyptic number.

27424980 is a gapful number since it is divisible by the number (20) 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 27424980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49598640).

27424980 is an abundant number, since it is smaller than the sum of its proper divisors (71772300).

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

27424980 is a wasteful number, since it uses less digits than its factorization.

27424980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 27424980 is about 5236.8864795793. The cubic root of 27424980 is about 301.5658132114.

The spelling of 27424980 in words is "twenty-seven million, four hundred twenty-four thousand, nine hundred eighty".