1409402 has 8 divisors (see below), whose sum is σ = 2238516. Its totient is φ = 663232.

The previous prime is 1409399. The next prime is 1409407. The reversal of 1409402 is 2049041.

It can be written as a sum of positive squares in 2 ways, for example, as 1394761 + 14641 = 1181^2 + 121^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1409407) 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, 20693 + ... + 20760.

2^1409402 is an apocalyptic number.

1409402 is a deficient number, since it is larger than the sum of its proper divisors (829114).

1409402 is a wasteful number, since it uses less digits than its factorization.

1409402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41472.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1409402 is about 1187.1823785754. The cubic root of 1409402 is about 112.1187622031.

The spelling of 1409402 in words is "one million, four hundred nine thousand, four hundred two".