749426 has 4 divisors (see below), whose sum is σ = 1124142. Its totient is φ = 374712.

The previous prime is 749423. The next prime is 749429. The reversal of 749426 is 624947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 624947 = 347 ⋅1801.

It is an interprime number because it is at equal distance from previous prime (749423) and next prime (749429).

It can be written as a sum of positive squares in only one way, i.e., 390625 + 358801 = 625^2 + 599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 749392 and 749401.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 749426.

It is not an unprimeable number, because it can be changed into a prime (749423) by changing a digit.

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 as a sum of consecutive naturals, namely, 187355 + ... + 187358.

2⁷⁴⁹⁴²⁶ is an apocalyptic number.

749426 is a deficient number, since it is larger than the sum of its proper divisors (374716).

749426 is a wasteful number, since it uses less digits than its factorization.

749426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374715.

The product of its digits is 12096, while the sum is 32.

The square root of 749426 is about 865.6939412980. The cubic root of 749426 is about 90.8328453434.

The spelling of 749426 in words is "seven hundred forty-nine thousand, four hundred twenty-six".