1409390 has 8 divisors (see below), whose sum is σ = 2536920. Its totient is φ = 563752.

The previous prime is 1409381. The next prime is 1409393. The reversal of 1409390 is 939041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409393) 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, 70460 + ... + 70479.

It is an arithmetic number, because the mean of its divisors is an integer number (317115).

2^1409390 is an apocalyptic number.

1409390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1409390 is a deficient number, since it is larger than the sum of its proper divisors (1127530).

1409390 is a wasteful number, since it uses less digits than its factorization.

1409390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140946.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1409390 is about 1187.1773245813. The cubic root of 1409390 is about 112.1184439998.

The spelling of 1409390 in words is "one million, four hundred nine thousand, three hundred ninety".