749029478 has 4 divisors (see below), whose sum is σ = 1123544220. Its totient is φ = 374514738.

The previous prime is 749029417. The next prime is 749029507. The reversal of 749029478 is 874920947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 874920947 = 523 ⋅1672889.

It is a super-2 number, since 2×749029478² = 1122090317825904968, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 187257368 + ... + 187257371.

It is an arithmetic number, because the mean of its divisors is an integer number (280886055).

Almost surely, 2^749029478 is an apocalyptic number.

749029478 is a deficient number, since it is larger than the sum of its proper divisors (374514742).

749029478 is a wasteful number, since it uses less digits than its factorization.

749029478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374514741.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 749029478 is about 27368.4029128482. The cubic root of 749029478 is about 908.1682260257.

The spelling of 749029478 in words is "seven hundred forty-nine million, twenty-nine thousand, four hundred seventy-eight".