7389490 has 32 divisors (see below), whose sum is σ = 13970880. Its totient is φ = 2810304.

The previous prime is 7389469. The next prime is 7389491. The reversal of 7389490 is 949837.

7389490 = T₂₄₄ + T₂₄₅ + ... + T₃₈₈.

It is not an unprimeable number, because it can be changed into a prime (7389491) 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, 23917 + ... + 24223.

It is an arithmetic number, because the mean of its divisors is an integer number (436590).

Almost surely, 2^7389490 is an apocalyptic number.

7389490 is a deficient number, since it is larger than the sum of its proper divisors (6581390).

7389490 is a wasteful number, since it uses less digits than its factorization.

7389490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 7389490 is about 2718.3616389289. The cubic root of 7389490 is about 194.7772165335. Note that the first 3 decimals are identical.

It can be divided in two parts, 73894 and 90, that added together give a square (73984 = 272²).

The spelling of 7389490 in words is "seven million, three hundred eighty-nine thousand, four hundred ninety".