740013978 has 72 divisors (see below), whose sum is σ = 1728621216. Its totient is φ = 210995840.

The previous prime is 740013977. The next prime is 740014003. The reversal of 740013978 is 879310047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740013977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 208051 + ... + 211577.

It is an arithmetic number, because the mean of its divisors is an integer number (24008628).

Almost surely, 2^740013978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740013978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864310608).

740013978 is an abundant number, since it is smaller than the sum of its proper divisors (988607238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

740013978 is a wasteful number, since it uses less digits than its factorization.

740013978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 740013978 is about 27203.1979370073. The cubic root of 740013978 is about 904.5098647320.

The spelling of 740013978 in words is "seven hundred forty million, thirteen thousand, nine hundred seventy-eight".