4152990 has 16 divisors (see below), whose sum is σ = 9967248. Its totient is φ = 1107456.

The previous prime is 4152989. The next prime is 4152997. The reversal of 4152990 is 992514.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 138433 = 4152990 / (4 + 1 + 5 + 2 + 9 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4152997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69187 + ... + 69246.

It is an arithmetic number, because the mean of its divisors is an integer number (622953).

Almost surely, 2^4152990 is an apocalyptic number.

4152990 is an abundant number, since it is smaller than the sum of its proper divisors (5814258).

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

4152990 is a wasteful number, since it uses less digits than its factorization.

4152990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138443.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 4152990 is about 2037.8886132466. Note that the first 3 decimals coincide. The cubic root of 4152990 is about 160.7386420934.

The spelling of 4152990 in words is "four million, one hundred fifty-two thousand, nine hundred ninety".