1920722 has 8 divisors (see below), whose sum is σ = 2903472. Its totient is φ = 952900.

The previous prime is 1920713. The next prime is 1920731. The reversal of 1920722 is 2270291.

It is an interprime number because it is at equal distance from previous prime (1920713) and next prime (1920731).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404 + ... + 3927.

It is an arithmetic number, because the mean of its divisors is an integer number (362934).

2^1920722 is an apocalyptic number.

1920722 is a deficient number, since it is larger than the sum of its proper divisors (982750).

1920722 is a wasteful number, since it uses less digits than its factorization.

1920722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7464.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1920722 is about 1385.9011508762. The cubic root of 1920722 is about 124.3048776043.

The spelling of 1920722 in words is "one million, nine hundred twenty thousand, seven hundred twenty-two".