7399938 has 32 divisors (see below), whose sum is σ = 18216576. Its totient is φ = 1951488.

The previous prime is 7399933. The next prime is 7399961. The reversal of 7399938 is 8399937.

It is a d-powerful number, because it can be written as 7⁸ + 3³ + 9³ + 9³ + 9⁴ + 3¹³ + 8⁵ .

It is not an unprimeable number, because it can be changed into a prime (7399933) 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, 6231 + ... + 7322.

It is an arithmetic number, because the mean of its divisors is an integer number (569268).

Almost surely, 2^7399938 is an apocalyptic number.

7399938 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

7399938 is an abundant number, since it is smaller than the sum of its proper divisors (10816638).

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

7399938 is a wasteful number, since it uses less digits than its factorization.

7399938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13578.

The product of its digits is 367416, while the sum is 48.

The square root of 7399938 is about 2720.2827058966. The cubic root of 7399938 is about 194.8689718058.

Subtracting 7399938 from its reverse (8399937), we obtain a palindrome (999999).

The spelling of 7399938 in words is "seven million, three hundred ninety-nine thousand, nine hundred thirty-eight".