1550402 has 16 divisors (see below), whose sum is σ = 2704320. Its totient is φ = 652848.

The previous prime is 1550401. The next prime is 1550413. The reversal of 1550402 is 2040551.

It is not an unprimeable number, because it can be changed into a prime (1550401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113 + ... + 1764.

It is an arithmetic number, because the mean of its divisors is an integer number (169020).

2^1550402 is an apocalyptic number.

1550402 is a deficient number, since it is larger than the sum of its proper divisors (1153918).

1550402 is a wasteful number, since it uses less digits than its factorization.

1550402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1550402 is about 1245.1513964173. The cubic root of 1550402 is about 115.7394568593.

Adding to 1550402 its reverse (2040551), we get a palindrome (3590953).

The spelling of 1550402 in words is "one million, five hundred fifty thousand, four hundred two".