4280398 has 4 divisors (see below), whose sum is σ = 6420600. Its totient is φ = 2140198.

The previous prime is 4280389. The next prime is 4280399. The reversal of 4280398 is 8930824.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070098 + ... + 1070101.

It is an arithmetic number, because the mean of its divisors is an integer number (1605150).

Almost surely, 2^4280398 is an apocalyptic number.

4280398 is a deficient number, since it is larger than the sum of its proper divisors (2140202).

4280398 is a wasteful number, since it uses less digits than its factorization.

4280398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140201.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 4280398 is about 2068.9122746023. The cubic root of 4280398 is about 162.3658601099.

The spelling of 4280398 in words is "four million, two hundred eighty thousand, three hundred ninety-eight".