1428552490 has 16 divisors (see below), whose sum is σ = 2581404552. Its totient is φ = 569196544.

The previous prime is 1428552467. The next prime is 1428552491. The reversal of 1428552490 is 942558241.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1414587321 + 13965169 = 37611^2 + 3737^2 .

It is not an unprimeable number, because it can be changed into a prime (1428552491) 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 7 ways as a sum of consecutive naturals, for example, 275359 + ... + 280498.

Almost surely, 2^1428552490 is an apocalyptic number.

1428552490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428552490 is a deficient number, since it is larger than the sum of its proper divisors (1152852062).

1428552490 is a wasteful number, since it uses less digits than its factorization.

1428552490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556121.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 1428552490 is about 37796.1967663415. The cubic root of 1428552490 is about 1126.2429035322.

The spelling of 1428552490 in words is "one billion, four hundred twenty-eight million, five hundred fifty-two thousand, four hundred ninety".