1913922 has 48 divisors (see below), whose sum is σ = 4512480. Its totient is φ = 601128.

The previous prime is 1913917. The next prime is 1913939. The reversal of 1913922 is 2293191.

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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28533 + ... + 28599.

It is an arithmetic number, because the mean of its divisors is an integer number (94010).

2^1913922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1913922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2256240).

1913922 is an abundant number, since it is smaller than the sum of its proper divisors (2598558).

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

1913922 is a wasteful number, since it uses less digits than its factorization.

1913922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 95 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1913922 is about 1383.4456982477. The cubic root of 1913922 is about 124.1580104972.

The spelling of 1913922 in words is "one million, nine hundred thirteen thousand, nine hundred twenty-two".