742440280 has 32 divisors (see below), whose sum is σ = 1679736240. Its totient is φ = 295332480.

The previous prime is 742440241. The next prime is 742440323. The reversal of 742440280 is 82044247.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44034 + ... + 58513.

Almost surely, 2^742440280 is an apocalyptic number.

It is an amenable number.

742440280 is an abundant number, since it is smaller than the sum of its proper divisors (937295960).

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

742440280 is a wasteful number, since it uses less digits than its factorization.

742440280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102739 (or 102735 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 742440280 is about 27247.7573389077. The cubic root of 742440280 is about 905.4973325396.

The spelling of 742440280 in words is "seven hundred forty-two million, four hundred forty thousand, two hundred eighty".