749189007 has 40 divisors (see below), whose sum is σ = 1300066592. Its totient is φ = 421070400.

The previous prime is 749189003. The next prime is 749189017. The reversal of 749189007 is 700981947.

It is not a de Polignac number, because 749189007 - 2² = 749189003 is a prime.

It is a super-2 number, since 2×749189007² = 1122568336419292098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749189003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23757 + ... + 45417.

Almost surely, 2^749189007 is an apocalyptic number.

749189007 is a deficient number, since it is larger than the sum of its proper divisors (550877585).

749189007 is a wasteful number, since it uses less digits than its factorization.

749189007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21741 (or 21732 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 749189007 is about 27371.3172317300. The cubic root of 749189007 is about 908.2326956222.

The spelling of 749189007 in words is "seven hundred forty-nine million, one hundred eighty-nine thousand, seven".