1319420 has 24 divisors (see below), whose sum is σ = 2847264. Its totient is φ = 513216.

The previous prime is 1319419. The next prime is 1319429. The reversal of 1319420 is 249131.

1319420 = T₁₇₉ + T₁₈₀ + ... + T₂₃₈.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1319392 and 1319401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1319429) 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, 152 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (118636).

2^1319420 is an apocalyptic number.

1319420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1319420 is an abundant number, since it is smaller than the sum of its proper divisors (1527844).

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

1319420 is a wasteful number, since it uses less digits than its factorization.

1319420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1827 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1319420 is about 1148.6600889732. The cubic root of 1319420 is about 109.6800620898.

The spelling of 1319420 in words is "one million, three hundred nineteen thousand, four hundred twenty".