7404720 has 40 divisors (see below), whose sum is σ = 22955376. Its totient is φ = 1974528.

The previous prime is 7404659. The next prime is 7404731. The reversal of 7404720 is 274047.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15187 + ... + 15666.

Almost surely, 2^7404720 is an apocalyptic number.

It is an amenable number.

7404720 is an abundant number, since it is smaller than the sum of its proper divisors (15550656).

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

7404720 is a wasteful number, since it uses less digits than its factorization.

7404720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30869 (or 30863 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 7404720 is about 2721.1615167057. The cubic root of 7404720 is about 194.9109389486.

Adding to 7404720 its reverse (274047), we get a palindrome (7678767).

It can be divided in two parts, 740 and 4720, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 7404720 in words is "seven million, four hundred four thousand, seven hundred twenty".