740197939 has 8 divisors (see below), whose sum is σ = 799425200. Its totient is φ = 681297696.

The previous prime is 740197907. The next prime is 740197949. The reversal of 740197939 is 939791047.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 740197939 - 2⁵ = 740197907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 740197892 and 740197901.

It is not an unprimeable number, because it can be changed into a prime (740197949) 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, 77037 + ... + 86110.

It is an arithmetic number, because the mean of its divisors is an integer number (99928150).

Almost surely, 2^740197939 is an apocalyptic number.

740197939 is a deficient number, since it is larger than the sum of its proper divisors (59227261).

740197939 is a wasteful number, since it uses less digits than its factorization.

740197939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163509.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 740197939 is about 27206.5789653900. The cubic root of 740197939 is about 904.5848096015.

The spelling of 740197939 in words is "seven hundred forty million, one hundred ninety-seven thousand, nine hundred thirty-nine".