4280388 has 24 divisors (see below), whose sum is σ = 11414592. Its totient is φ = 1222944.

The previous prime is 4280383. The next prime is 4280389. The reversal of 4280388 is 8830824.

It is not an unprimeable number, because it can be changed into a prime (4280383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25395 + ... + 25562.

It is an arithmetic number, because the mean of its divisors is an integer number (475608).

Almost surely, 2^4280388 is an apocalyptic number.

It is an amenable number.

4280388 is an abundant number, since it is smaller than the sum of its proper divisors (7134204).

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

4280388 is a wasteful number, since it uses less digits than its factorization.

4280388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50971 (or 50969 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 4280388 is about 2068.9098578720. The cubic root of 4280388 is about 162.3657336684.

The spelling of 4280388 in words is "four million, two hundred eighty thousand, three hundred eighty-eight".