1900236 has 36 divisors (see below), whose sum is σ = 4806312. Its totient is φ = 584064.

The previous prime is 1900231. The next prime is 1900253. The reversal of 1900236 is 6320091.

It is a super-2 number, since 2×1900236² = 7221793711392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1900231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1560 + ... + 2496.

2^1900236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1900236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2403156).

1900236 is an abundant number, since it is smaller than the sum of its proper divisors (2906076).

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

1900236 is a wasteful number, since it uses less digits than its factorization.

1900236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1900236 is about 1378.4904787484. The cubic root of 1900236 is about 123.8613608333.

The spelling of 1900236 in words is "one million, nine hundred thousand, two hundred thirty-six".