1670040 has 48 divisors (see below), whose sum is σ = 5428800. Its totient is φ = 445248.

The previous prime is 1670017. The next prime is 1670057. The reversal of 1670040 is 400761.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1669995 and 1670022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1960 + ... + 2679.

It is an arithmetic number, because the mean of its divisors is an integer number (113100).

2^1670040 is an apocalyptic number.

1670040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1670040 is an abundant number, since it is smaller than the sum of its proper divisors (3758760).

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

1670040 is a wasteful number, since it uses less digits than its factorization.

1670040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4656 (or 4649 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1670040 is about 1292.3002747040. The cubic root of 1670040 is about 118.6430468216.

The spelling of 1670040 in words is "one million, six hundred seventy thousand, forty".