4002690 has 32 divisors (see below), whose sum is σ = 10025856. Its totient is φ = 1020800.

The previous prime is 4002679. The next prime is 4002709. The reversal of 4002690 is 962004.

It is a super-2 number, since 2×4002690² = 32043054472200, which contains 22 as substring.

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, 2211 + ... + 3590.

It is an arithmetic number, because the mean of its divisors is an integer number (313308).

Almost surely, 2^4002690 is an apocalyptic number.

4002690 is an abundant number, since it is smaller than the sum of its proper divisors (6023166).

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

4002690 is a wasteful number, since it uses less digits than its factorization.

4002690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 4002690 is about 2000.6723869739. The cubic root of 4002690 is about 158.7756814632.

Adding to 4002690 its reverse (962004), we get a palindrome (4964694).

The spelling of 4002690 in words is "four million, two thousand, six hundred ninety".