1428207670 has 16 divisors (see below), whose sum is σ = 2596228848. Its totient is φ = 565626400.

The previous prime is 1428207667. The next prime is 1428207673. The reversal of 1428207670 is 767028241.

It is an interprime number because it is at equal distance from previous prime (1428207667) and next prime (1428207673).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428207673) by changing a digit.

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, 706024 + ... + 708043.

It is an arithmetic number, because the mean of its divisors is an integer number (162264303).

Almost surely, 2^1428207670 is an apocalyptic number.

1428207670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428207670 is a deficient number, since it is larger than the sum of its proper divisors (1168021178).

1428207670 is a wasteful number, since it uses less digits than its factorization.

1428207670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414175.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 1428207670 is about 37791.6349209716. The cubic root of 1428207670 is about 1126.1522797875.

The spelling of 1428207670 in words is "one billion, four hundred twenty-eight million, two hundred seven thousand, six hundred seventy".