4145820 has 48 divisors (see below), whose sum is σ = 13267968. Its totient is φ = 947520.

The previous prime is 4145809. The next prime is 4145837. The reversal of 4145820 is 285414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4516 + ... + 5355.

It is an arithmetic number, because the mean of its divisors is an integer number (276416).

Almost surely, 2^4145820 is an apocalyptic number.

It is an amenable number.

4145820 is an abundant number, since it is smaller than the sum of its proper divisors (9122148).

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

4145820 is a wasteful number, since it uses less digits than its factorization.

4145820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890 (or 9888 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 4145820 is about 2036.1286796271. The cubic root of 4145820 is about 160.6460854897.

The spelling of 4145820 in words is "four million, one hundred forty-five thousand, eight hundred twenty".