1406620 has 24 divisors (see below), whose sum is σ = 3011904. Its totient is φ = 551616.

The previous prime is 1406617. The next prime is 1406633. The reversal of 1406620 is 266041.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (125496).

2^1406620 is an apocalyptic number.

1406620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1406620 is an abundant number, since it is smaller than the sum of its proper divisors (1605284).

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

1406620 is a wasteful number, since it uses less digits than its factorization.

1406620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1406620 is about 1186.0101180007. The cubic root of 1406620 is about 112.0449436971.

The spelling of 1406620 in words is "one million, four hundred six thousand, six hundred twenty".