1319920 has 40 divisors (see below), whose sum is σ = 3508704. Its totient is φ = 452352.

The previous prime is 1319917. The next prime is 1319933. The reversal of 1319920 is 299131.

1319920 = T₃₄₄ + T₃₄₅ + ... + T₃₆₄.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 619 + ... + 1738.

2^1319920 is an apocalyptic number.

1319920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1319920 is an abundant number, since it is smaller than the sum of its proper divisors (2188784).

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

1319920 is a wasteful number, since it uses less digits than its factorization.

1319920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377 (or 2371 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 1319920 is about 1148.8777132489. The cubic root of 1319920 is about 109.6939149204.

The spelling of 1319920 in words is "one million, three hundred nineteen thousand, nine hundred twenty".