1428632 has 16 divisors (see below), whose sum is σ = 2741640. Its totient is φ = 697536.

The previous prime is 1428631. The next prime is 1428649. The reversal of 1428632 is 2368241.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1733 + ... + 2420.

2^1428632 is an apocalyptic number.

It is an amenable number.

1428632 is a deficient number, since it is larger than the sum of its proper divisors (1313008).

1428632 is a wasteful number, since it uses less digits than its factorization.

1428632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202 (or 4198 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1428632 is about 1195.2539479123. The cubic root of 1428632 is about 112.6263797855.

It can be divided in two parts, 1428 and 632, that multiplied together give a triangular number (902496 = T₁₃₄₃).

The spelling of 1428632 in words is "one million, four hundred twenty-eight thousand, six hundred thirty-two".