1901896 has 8 divisors (see below), whose sum is σ = 3566070. Its totient is φ = 950944.

The previous prime is 1901891. The next prime is 1901897. The reversal of 1901896 is 6981091.

It can be written as a sum of positive squares in only one way, i.e., 1179396 + 722500 = 1086^2 + 850^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1901891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118861 + ... + 118876.

2^1901896 is an apocalyptic number.

It is an amenable number.

1901896 is a deficient number, since it is larger than the sum of its proper divisors (1664174).

1901896 is a wasteful number, since it uses less digits than its factorization.

1901896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237743 (or 237739 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1901896 is about 1379.0924552038. The cubic root of 1901896 is about 123.8974177610.

The spelling of 1901896 in words is "one million, nine hundred one thousand, eight hundred ninety-six".