1642632 has 16 divisors (see below), whose sum is σ = 4106640. Its totient is φ = 547536.

The previous prime is 1642631. The next prime is 1642633. The reversal of 1642632 is 2362461.

It is an interprime number because it is at equal distance from previous prime (1642631) and next prime (1642633).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 68443 = 1642632 / (1 + 6 + 4 + 2 + 6 + 3 + 2).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1642631) 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, 34198 + ... + 34245.

It is an arithmetic number, because the mean of its divisors is an integer number (256665).

2^1642632 is an apocalyptic number.

1642632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1642632 is an abundant number, since it is smaller than the sum of its proper divisors (2464008).

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

1642632 is a wasteful number, since it uses less digits than its factorization.

1642632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68452 (or 68448 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 1642632 is about 1281.6520588678. The cubic root of 1642632 is about 117.9904234304.

The spelling of 1642632 in words is "one million, six hundred forty-two thousand, six hundred thirty-two".