4539420 has 36 divisors (see below), whose sum is σ = 13770120. Its totient is φ = 1210464.

The previous prime is 4539413. The next prime is 4539427. The reversal of 4539420 is 249354.

It is an interprime number because it is at equal distance from previous prime (4539413) and next prime (4539427).

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12430 + ... + 12789.

Almost surely, 2^4539420 is an apocalyptic number.

It is an amenable number.

4539420 is an abundant number, since it is smaller than the sum of its proper divisors (9230700).

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

4539420 is a wasteful number, since it uses less digits than its factorization.

4539420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25234 (or 25229 counting only the distinct ones).

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

The square root of 4539420 is about 2130.5914671753. The cubic root of 4539420 is about 165.5770429564.

The spelling of 4539420 in words is "four million, five hundred thirty-nine thousand, four hundred twenty".