4078620 has 192 divisors, whose sum is σ = 15805440. Its totient is φ = 850176.

The previous prime is 4078619. The next prime is 4078631. The reversal of 4078620 is 268704.

It is a super-2 number, since 2×4078620² = 33270282208800, which contains 22 as substring.

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

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49099 + ... + 49181.

It is an arithmetic number, because the mean of its divisors is an integer number (82320).

Almost surely, 2^4078620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4078620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7902720).

4078620 is an abundant number, since it is smaller than the sum of its proper divisors (11726820).

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

4078620 is a wasteful number, since it uses less digits than its factorization.

4078620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4078620 is about 2019.5593578798. The cubic root of 4078620 is about 159.7733770810.

The spelling of 4078620 in words is "four million, seventy-eight thousand, six hundred twenty".