4200090 has 32 divisors (see below), whose sum is σ = 10146816. Its totient is φ = 1112640.

The previous prime is 4200073. The next prime is 4200103. The reversal of 4200090 is 900024.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 5364 + ... + 6096.

It is an arithmetic number, because the mean of its divisors is an integer number (317088).

Almost surely, 2^4200090 is an apocalyptic number.

4200090 is an abundant number, since it is smaller than the sum of its proper divisors (5946726).

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

4200090 is a wasteful number, since it uses less digits than its factorization.

4200090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 4200090 is about 2049.4121108259. The cubic root of 4200090 is about 161.3440170433.

The spelling of 4200090 in words is "four million, two hundred thousand, ninety".