1428590449 has 32 divisors (see below), whose sum is σ = 1771862400. Its totient is φ = 1132392960.

The previous prime is 1428590437. The next prime is 1428590459. The reversal of 1428590449 is 9440958241.

It is a cyclic number.

It is not a de Polignac number, because 1428590449 - 2¹⁹ = 1428066161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1428590399 and 1428590408.

It is not an unprimeable number, because it can be changed into a prime (1428590459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1382437 + ... + 1383469.

It is an arithmetic number, because the mean of its divisors is an integer number (55370700).

Almost surely, 2^1428590449 is an apocalyptic number.

1428590449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1428590449 is a deficient number, since it is larger than the sum of its proper divisors (343271951).

1428590449 is a wasteful number, since it uses less digits than its factorization.

1428590449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1428590449 is about 37796.6989167044. The cubic root of 1428590449 is about 1126.2528788221.

The spelling of 1428590449 in words is "one billion, four hundred twenty-eight million, five hundred ninety thousand, four hundred forty-nine".