1671432 has 32 divisors (see below), whose sum is σ = 4776000. Its totient is φ = 477504.

The previous prime is 1671431. The next prime is 1671437. The reversal of 1671432 is 2341761.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 (1671431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4807 + ... + 5142.

It is an arithmetic number, because the mean of its divisors is an integer number (149250).

2^1671432 is an apocalyptic number.

1671432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1671432 is an abundant number, since it is smaller than the sum of its proper divisors (3104568).

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

1671432 is a wasteful number, since it uses less digits than its factorization.

1671432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965 (or 9961 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 1671432 is about 1292.8387370434. The cubic root of 1671432 is about 118.6760011734.

The spelling of 1671432 in words is "one million, six hundred seventy-one thousand, four hundred thirty-two".