749409427 has 8 divisors (see below), whose sum is σ = 808320464. Its totient is φ = 690679008.

The previous prime is 749409413. The next prime is 749409431. The reversal of 749409427 is 724904947.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749409427 is a prime.

It is a super-2 number, since 2×749409427² = 1123228978552936658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749409467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36468 + ... + 53185.

It is an arithmetic number, because the mean of its divisors is an integer number (101040058).

Almost surely, 2^749409427 is an apocalyptic number.

749409427 is a deficient number, since it is larger than the sum of its proper divisors (58911037).

749409427 is a wasteful number, since it uses less digits than its factorization.

749409427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90309.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 749409427 is about 27375.3434133711. The cubic root of 749409427 is about 908.3217577142.

The spelling of 749409427 in words is "seven hundred forty-nine million, four hundred nine thousand, four hundred twenty-seven".