3618398 has 32 divisors (see below), whose sum is σ = 6666240. Its totient is φ = 1438560.

The previous prime is 3618397. The next prime is 3618403. The reversal of 3618398 is 8938163.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16115 + ... + 16337.

It is an arithmetic number, because the mean of its divisors is an integer number (208320).

Almost surely, 2^3618398 is an apocalyptic number.

3618398 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3618398 is a deficient number, since it is larger than the sum of its proper divisors (3047842).

3618398 is a wasteful number, since it uses less digits than its factorization.

3618398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its digits is 31104, while the sum is 38.

The square root of 3618398 is about 1902.2087162034. The cubic root of 3618398 is about 153.5225274368.

The spelling of 3618398 in words is "three million, six hundred eighteen thousand, three hundred ninety-eight".