740278779 has 16 divisors (see below), whose sum is σ = 1054500480. Its totient is φ = 460563840.

The previous prime is 740278757. The next prime is 740278823. The reversal of 740278779 is 977872047.

It is not a de Polignac number, because 740278779 - 2¹¹ = 740276731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (740278709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93102 + ... + 100739.

It is an arithmetic number, because the mean of its divisors is an integer number (65906280).

Almost surely, 2^740278779 is an apocalyptic number.

740278779 is a deficient number, since it is larger than the sum of its proper divisors (314221701).

740278779 is a wasteful number, since it uses less digits than its factorization.

740278779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193930.

The product of its (nonzero) digits is 1382976, while the sum is 51.

The square root of 740278779 is about 27208.0645948954. The cubic root of 740278779 is about 904.6177395202.

The spelling of 740278779 in words is "seven hundred forty million, two hundred seventy-eight thousand, seven hundred seventy-nine".