1913436 has 48 divisors (see below), whose sum is σ = 5671680. Its totient is φ = 546480.

The previous prime is 1913419. The next prime is 1913437. The reversal of 1913436 is 6343191.

1913436 is nontrivially palindromic in base 13.

It is a super-2 number, since 2×1913436² = 7322474652192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510 + ... + 2021.

It is an arithmetic number, because the mean of its divisors is an integer number (118160).

2^1913436 is an apocalyptic number.

It is an amenable number.

1913436 is an abundant number, since it is smaller than the sum of its proper divisors (3758244).

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

1913436 is a wasteful number, since it uses less digits than its factorization.

1913436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2543 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 1913436 is about 1383.2700387126. The cubic root of 1913436 is about 124.1475005075.

The spelling of 1913436 in words is "one million, nine hundred thirteen thousand, four hundred thirty-six".