4539402 has 40 divisors (see below), whose sum is σ = 11627616. Its totient is φ = 1296648.

The previous prime is 4539383. The next prime is 4539413. The reversal of 4539402 is 2049354.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 868 + ... + 3135.

Almost surely, 2^4539402 is an apocalyptic number.

4539402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4539402 is an abundant number, since it is smaller than the sum of its proper divisors (7088214).

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

4539402 is a wasteful number, since it uses less digits than its factorization.

4539402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024 (or 4015 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 4539402 is about 2130.5872429919. The cubic root of 4539402 is about 165.5768241039.

The spelling of 4539402 in words is "four million, five hundred thirty-nine thousand, four hundred two".