1953868 has 24 divisors (see below), whose sum is σ = 4035584. Its totient is φ = 810000.

The previous prime is 1953863. The next prime is 1953869. The reversal of 1953868 is 8683591.

It is a happy number.

It is a super-2 number, since 2×1953868² = 7635200322848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1953868.

It is not an unprimeable number, because it can be changed into a prime (1953863) 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, 258 + ... + 1993.

2^1953868 is an apocalyptic number.

It is an amenable number.

1953868 is an abundant number, since it is smaller than the sum of its proper divisors (2081716).

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

1953868 is a wasteful number, since it uses less digits than its factorization.

1953868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2291 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 1953868 is about 1397.8082844224. The cubic root of 1953868 is about 125.0158486571.

It can be divided in two parts, 1953 and 868, that multiplied together give a square (1695204 = 1302²).

The spelling of 1953868 in words is "one million, nine hundred fifty-three thousand, eight hundred sixty-eight".