1428687960 has 64 divisors (see below), whose sum is σ = 4898361600. Its totient is φ = 326557056.

The previous prime is 1428687959. The next prime is 1428687983. The reversal of 1428687960 is 697868241.

It is a super-2 number, since 2×1428687960² = 4082298574097923200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849570 + ... + 851249.

It is an arithmetic number, because the mean of its divisors is an integer number (76536900).

Almost surely, 2^1428687960 is an apocalyptic number.

1428687960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1428687960 is an abundant number, since it is smaller than the sum of its proper divisors (3469673640).

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

1428687960 is a wasteful number, since it uses less digits than its factorization.

1428687960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700840 (or 1700836 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 1428687960 is about 37797.9888353865. The cubic root of 1428687960 is about 1126.2785030417.

The spelling of 1428687960 in words is "one billion, four hundred twenty-eight million, six hundred eighty-seven thousand, nine hundred sixty".