740750981 has 4 divisors (see below), whose sum is σ = 757977792. Its totient is φ = 723524172.

The previous prime is 740750957. The next prime is 740750993. The reversal of 740750981 is 189057047.

740750981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 189057047 = 307 ⋅615821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-740750981 is a prime.

It is a super-2 number, since 2×740750981² = 1097424031704924722, 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 (740750081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8613341 + ... + 8613426.

It is an arithmetic number, because the mean of its divisors is an integer number (189494448).

Almost surely, 2^740750981 is an apocalyptic number.

It is an amenable number.

740750981 is a deficient number, since it is larger than the sum of its proper divisors (17226811).

740750981 is a wasteful number, since it uses less digits than its factorization.

740750981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17226810.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 740750981 is about 27216.7408225158. The cubic root of 740750981 is about 904.8100416301.

The spelling of 740750981 in words is "seven hundred forty million, seven hundred fifty thousand, nine hundred eighty-one".