1900002 has 16 divisors (see below), whose sum is σ = 4092480. Its totient is φ = 584592.

The previous prime is 1899983. The next prime is 1900009. The reversal of 1900002 is 2000091.

It is a happy number.

It is a super-2 number, since 2×1900002² = 7220015200008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1900009) 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, 12102 + ... + 12257.

It is an arithmetic number, because the mean of its divisors is an integer number (255780).

2^1900002 is an apocalyptic number.

1900002 is an abundant number, since it is smaller than the sum of its proper divisors (2192478).

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

1900002 is a wasteful number, since it uses less digits than its factorization.

1900002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24377.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1900002 is about 1378.4056006851. The cubic root of 1900002 is about 123.8562764213.

Adding to 1900002 its reverse (2000091), we get a palindrome (3900093).

The spelling of 1900002 in words is "one million, nine hundred thousand, two".