740981819 has 4 divisors (see below), whose sum is σ = 741084696. Its totient is φ = 740878944.

The previous prime is 740981803. The next prime is 740981827. The reversal of 740981819 is 918189047.

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 740981819 - 2⁴ = 740981803 is a prime.

It is a super-2 number, since 2×740981819² = 1098108112177097522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (740981849) 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, 39749 + ... + 55334.

It is an arithmetic number, because the mean of its divisors is an integer number (185271174).

Almost surely, 2^740981819 is an apocalyptic number.

740981819 is a deficient number, since it is larger than the sum of its proper divisors (102877).

740981819 is an equidigital number, since it uses as much as digits as its factorization.

740981819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102876.

The product of its (nonzero) digits is 145152, while the sum is 47.

The square root of 740981819 is about 27220.9812277221. The cubic root of 740981819 is about 904.9040196126.

The spelling of 740981819 in words is "seven hundred forty million, nine hundred eighty-one thousand, eight hundred nineteen".