740311978 has 8 divisors (see below), whose sum is σ = 1269106272. Its totient is φ = 317276556.

The previous prime is 740311967. The next prime is 740311981. The reversal of 740311978 is 879113047.

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

It is a self number, because there is not a number n which added to its sum of digits gives 740311978.

It is an unprimeable number.

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, 26439700 + ... + 26439727.

It is an arithmetic number, because the mean of its divisors is an integer number (158638284).

Almost surely, 2^740311978 is an apocalyptic number.

740311978 is a deficient number, since it is larger than the sum of its proper divisors (528794294).

740311978 is a wasteful number, since it uses less digits than its factorization.

740311978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52879436.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 740311978 is about 27208.6746829021. The cubic root of 740311978 is about 904.6312623337.

The spelling of 740311978 in words is "seven hundred forty million, three hundred eleven thousand, nine hundred seventy-eight".