7404740 has 48 divisors (see below), whose sum is σ = 17926272. Its totient is φ = 2516736.

The previous prime is 7404731. The next prime is 7404743. The reversal of 7404740 is 474047.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7404743) 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, 31664 + ... + 31896.

It is an arithmetic number, because the mean of its divisors is an integer number (373464).

Almost surely, 2^7404740 is an apocalyptic number.

7404740 is a gapful number since it is divisible by the number (70) 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 7404740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8963136).

7404740 is an abundant number, since it is smaller than the sum of its proper divisors (10521532).

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

7404740 is a wasteful number, since it uses less digits than its factorization.

7404740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 7404740 is about 2721.1651916045. The cubic root of 7404740 is about 194.9111144320.

Adding to 7404740 its reverse (474047), we get a palindrome (7878787).

The spelling of 7404740 in words is "seven million, four hundred four thousand, seven hundred forty".