740278280 has 96 divisors (see below), whose sum is σ = 1947081240. Its totient is φ = 252564480.

The previous prime is 740278261. The next prime is 740278283. The reversal of 740278280 is 82872047.

It can be written as a sum of positive squares in 4 ways, for example, as 581870884 + 158407396 = 24122^2 + 12586^2 .

It is not an unprimeable number, because it can be changed into a prime (740278283) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 455870 + ... + 457490.

Almost surely, 2^740278280 is an apocalyptic number.

740278280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740278280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973540620).

740278280 is an abundant number, since it is smaller than the sum of its proper divisors (1206802960).

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

740278280 is a wasteful number, since it uses less digits than its factorization.

740278280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879 (or 1868 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 740278280 is about 27208.0554248186. The cubic root of 740278280 is about 904.6175362615.

The spelling of 740278280 in words is "seven hundred forty million, two hundred seventy-eight thousand, two hundred eighty".