7389936 has 120 divisors (see below), whose sum is σ = 22664720. Its totient is φ = 2239488.

The previous prime is 7389929. The next prime is 7389959. The reversal of 7389936 is 6399837.

It is a happy number.

It is a super-2 number, since 2×7389936² = 109222308168192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7389891 and 7389900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101196 + ... + 101268.

Almost surely, 2^7389936 is an apocalyptic number.

7389936 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7389936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11332360).

7389936 is an abundant number, since it is smaller than the sum of its proper divisors (15274784).

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

7389936 is a wasteful number, since it uses less digits than its factorization.

7389936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 134 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 7389936 is about 2718.4436723979. The cubic root of 7389936 is about 194.7811351121.

Subtracting from 7389936 its reverse (6399837), we obtain a palindrome (990099).

It can be divided in two parts, 73 and 89936, that added together give a palindrome (90009).

The spelling of 7389936 in words is "seven million, three hundred eighty-nine thousand, nine hundred thirty-six".