740749491 has 6 divisors (see below), whose sum is σ = 1069971500. Its totient is φ = 493832988.

The previous prime is 740749463. The next prime is 740749507. The reversal of 740749491 is 194947047.

740749491 is a `hidden beast` number, since 74 + 0 + 7 + 494 + 91 = 666.

740749491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 740749491 - 2¹³ = 740741299 is a prime.

It is a super-3 number, since 3×740749491³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740749411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41152741 + ... + 41152758.

Almost surely, 2^740749491 is an apocalyptic number.

740749491 is a deficient number, since it is larger than the sum of its proper divisors (329222009).

740749491 is a wasteful number, since it uses less digits than its factorization.

740749491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82305505 (or 82305502 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 740749491 is about 27216.7134496434. The cubic root of 740749491 is about 904.8094349630.

The spelling of 740749491 in words is "seven hundred forty million, seven hundred forty-nine thousand, four hundred ninety-one".