7149426 has 8 divisors (see below), whose sum is σ = 14298864. Its totient is φ = 2383140.

The previous prime is 7149413. The next prime is 7149433. The reversal of 7149426 is 6249417.

It is a happy number.

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

7149426 is an admirable number.

It is a super-2 number, since 2×7149426² = 102228584258952, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595780 + ... + 595791.

It is an arithmetic number, because the mean of its divisors is an integer number (1787358).

Almost surely, 2^7149426 is an apocalyptic number.

7149426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7149426 is a wasteful number, since it uses less digits than its factorization.

7149426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191576.

The product of its digits is 12096, while the sum is 33.

The square root of 7149426 is about 2673.8410573555. The cubic root of 7149426 is about 192.6446969650.

Subtracting from 7149426 its reverse (6249417), we obtain a palindrome (900009).

The spelling of 7149426 in words is "seven million, one hundred forty-nine thousand, four hundred twenty-six".