1420080 has 80 divisors (see below), whose sum is σ = 4520544. Its totient is φ = 368640.

The previous prime is 1420073. The next prime is 1420091. The reversal of 1420080 is 800241.

1420080 = T₁₄₇ + T₁₄₈ + ... + T₂₂₆.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a zygodrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14592 + ... + 14688.

2^1420080 is an apocalyptic number.

1420080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2260272).

1420080 is an abundant number, since it is smaller than the sum of its proper divisors (3100464).

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

1420080 is a wasteful number, since it uses less digits than its factorization.

1420080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1420080 is about 1191.6710955629. The cubic root of 1420080 is about 112.4011972028.

The spelling of 1420080 in words is "one million, four hundred twenty thousand, eighty".