742280450 has 18 divisors (see below), whose sum is σ = 1381000059. Its totient is φ = 296835120.

The previous prime is 742280443. The next prime is 742280479. The reversal of 742280450 is 54082247.

It can be written as a sum of positive squares in 5 ways, for example, as 700819729 + 41460721 = 26473^2 + 6439^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=19265.

It is a Duffinian number.

It is a Curzon 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 8 ways as a sum of consecutive naturals, for example, 190724 + ... + 194576.

Almost surely, 2^742280450 is an apocalyptic number.

742280450 is a deficient number, since it is larger than the sum of its proper divisors (638719609).

742280450 is an frugal number, since it uses more digits than its factorization.

742280450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7718 (or 3860 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 742280450 is about 27244.8242791177. The cubic root of 742280450 is about 905.4323504218.

Multiplying 742280450 by its sum of digits (32), we get a square (23752974400 = 154120²).

The spelling of 742280450 in words is "seven hundred forty-two million, two hundred eighty thousand, four hundred fifty".