7409490 has 32 divisors (see below), whose sum is σ = 19400256. Its totient is φ = 1796160.

The previous prime is 7409483. The next prime is 7409497. The reversal of 7409490 is 949047.

It is an interprime number because it is at equal distance from previous prime (7409483) and next prime (7409497).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7409497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10897 + ... + 11556.

It is an arithmetic number, because the mean of its divisors is an integer number (606258).

Almost surely, 2^7409490 is an apocalyptic number.

7409490 is an abundant number, since it is smaller than the sum of its proper divisors (11990766).

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

7409490 is a wasteful number, since it uses less digits than its factorization.

7409490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22474.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7409490 is about 2722.0378395606. The cubic root of 7409490 is about 194.9527827821.

The spelling of 7409490 in words is "seven million, four hundred nine thousand, four hundred ninety".