1493406 has 24 divisors (see below), whose sum is σ = 3261960. Its totient is φ = 493776.

The previous prime is 1493389. The next prime is 1493423. The reversal of 1493406 is 6043941.

It is an interprime number because it is at equal distance from previous prime (1493389) and next prime (1493423).

It is a super-2 number, since 2×1493406² = 4460522961672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1493406.

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, 2680 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (135915).

2^1493406 is an apocalyptic number.

1493406 is an abundant number, since it is smaller than the sum of its proper divisors (1768554).

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

1493406 is a wasteful number, since it uses less digits than its factorization.

1493406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1493406 is about 1222.0499171474. The cubic root of 1493406 is about 114.3034390664.

The spelling of 1493406 in words is "one million, four hundred ninety-three thousand, four hundred six".