7490638 has 8 divisors (see below), whose sum is σ = 11295360. Its totient is φ = 3725520.

The previous prime is 7490629. The next prime is 7490647. The reversal of 7490638 is 8360947.

It is an interprime number because it is at equal distance from previous prime (7490629) and next prime (7490647).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7490638² = 112219315294088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7490597 and 7490606.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9423 + ... + 10186.

It is an arithmetic number, because the mean of its divisors is an integer number (1411920).

Almost surely, 2^7490638 is an apocalyptic number.

7490638 is a deficient number, since it is larger than the sum of its proper divisors (3804722).

7490638 is a wasteful number, since it uses less digits than its factorization.

7490638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19802.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 7490638 is about 2736.9029942619. The cubic root of 7490638 is about 195.6619014995.

It can be divided in two parts, 7490 and 638, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 7490638 in words is "seven million, four hundred ninety thousand, six hundred thirty-eight".