749142338 has 32 divisors (see below), whose sum is σ = 1344542976. Its totient is φ = 306079488.

The previous prime is 749142337. The next prime is 749142377. The reversal of 749142338 is 833241947.

It is a super-2 number, since 2×749142338² = 1122428485168212488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 749142295 and 749142304.

It is not an unprimeable number, because it can be changed into a prime (749142337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97070 + ... + 104502.

It is an arithmetic number, because the mean of its divisors is an integer number (42016968).

Almost surely, 2^749142338 is an apocalyptic number.

749142338 is a deficient number, since it is larger than the sum of its proper divisors (595400638).

749142338 is a wasteful number, since it uses less digits than its factorization.

749142338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778.

The product of its digits is 145152, while the sum is 41.

The square root of 749142338 is about 27370.4647019374. The cubic root of 749142338 is about 908.2138364774.

The spelling of 749142338 in words is "seven hundred forty-nine million, one hundred forty-two thousand, three hundred thirty-eight".