1428676438 has 36 divisors (see below), whose sum is σ = 2513254716. Its totient is φ = 607320000.

The previous prime is 1428676423. The next prime is 1428676453. The reversal of 1428676438 is 8346768241.

It is an interprime number because it is at equal distance from previous prime (1428676423) and next prime (1428676453).

It is a super-2 number, since 2×1428676438² = 4082232728992735688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 1428676391 and 1428676400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5691813 + ... + 5692063.

It is an arithmetic number, because the mean of its divisors is an integer number (69812631).

Almost surely, 2^1428676438 is an apocalyptic number.

1428676438 is a deficient number, since it is larger than the sum of its proper divisors (1084578278).

1428676438 is an equidigital number, since it uses as much as digits as its factorization.

1428676438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 501 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The square root of 1428676438 is about 37797.8364195624. The cubic root of 1428676438 is about 1126.2754753183.

The spelling of 1428676438 in words is "one billion, four hundred twenty-eight million, six hundred seventy-six thousand, four hundred thirty-eight".