740640927 has 8 divisors (see below), whose sum is σ = 1063484464. Its totient is φ = 455779008.

The previous prime is 740640907. The next prime is 740640937. The reversal of 740640927 is 729046047.

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

It is not a de Polignac number, because 740640927 - 2⁶ = 740640863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 18990793 = 740640927 / (7 + 4 + 0 + 6 + 4 + 0 + 9 + 2 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740640907) 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, 9495358 + ... + 9495435.

It is an arithmetic number, because the mean of its divisors is an integer number (132935558).

Almost surely, 2^740640927 is an apocalyptic number.

740640927 is a deficient number, since it is larger than the sum of its proper divisors (322843537).

740640927 is a wasteful number, since it uses less digits than its factorization.

740640927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18990809.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 740640927 is about 27214.7189403088. The cubic root of 740640927 is about 904.7652299463.

The spelling of 740640927 in words is "seven hundred forty million, six hundred forty thousand, nine hundred twenty-seven".