740435991 has 4 divisors (see below), whose sum is σ = 987247992. Its totient is φ = 493623992.

The previous prime is 740435977. The next prime is 740436001. The reversal of 740435991 is 199534047.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 740435991 - 2²² = 736241687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740435911) 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 3 ways as a sum of consecutive naturals, for example, 123405996 + ... + 123406001.

It is an arithmetic number, because the mean of its divisors is an integer number (246811998).

Almost surely, 2^740435991 is an apocalyptic number.

740435991 is a deficient number, since it is larger than the sum of its proper divisors (246812001).

740435991 is a wasteful number, since it uses less digits than its factorization.

740435991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246812000.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 740435991 is about 27210.9535114079. The cubic root of 740435991 is about 904.6817724683.

The spelling of 740435991 in words is "seven hundred forty million, four hundred thirty-five thousand, nine hundred ninety-one".