1894475532 has 12 divisors (see below), whose sum is σ = 4420442936. Its totient is φ = 631491840.

The previous prime is 1894475509. The next prime is 1894475533. The reversal of 1894475532 is 2355744981.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1894475533) 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, 78936469 + ... + 78936492.

Almost surely, 2^1894475532 is an apocalyptic number.

1894475532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1894475532 is an abundant number, since it is smaller than the sum of its proper divisors (2525967404).

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

1894475532 is a wasteful number, since it uses less digits than its factorization.

1894475532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157872968 (or 157872966 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 1894475532 is about 43525.5733104114. The cubic root of 1894475532 is about 1237.3607435995.

The spelling of 1894475532 in words is "one billion, eight hundred ninety-four million, four hundred seventy-five thousand, five hundred thirty-two".