4098690 has 24 divisors (see below), whose sum is σ = 10656828. Its totient is φ = 1092960.

The previous prime is 4098673. The next prime is 4098691. The reversal of 4098690 is 968904.

It can be written as a sum of positive squares in 2 ways, for example, as 3674889 + 423801 = 1917^2 + 651^2 .

It is a super-2 number, since 2×4098690² = 33598519432200, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁹ + 0 + 9³ + 8⁷ + 6⁸ + 9⁵ + 0 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4098691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22681 + ... + 22860.

Almost surely, 2^4098690 is an apocalyptic number.

4098690 is an abundant number, since it is smaller than the sum of its proper divisors (6558138).

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

4098690 is a wasteful number, since it uses less digits than its factorization.

4098690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45554 (or 45551 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 4098690 is about 2024.5221658456. The cubic root of 4098690 is about 160.0350183768.

The spelling of 4098690 in words is "four million, ninety-eight thousand, six hundred ninety".