1064720 has 20 divisors (see below), whose sum is σ = 2475660. Its totient is φ = 425856.

The previous prime is 1064699. The next prime is 1064731. The reversal of 1064720 is 274601.

It can be written as a sum of positive squares in 2 ways, for example, as 135424 + 929296 = 368^2 + 964^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1064720² = 2267257356800, which contains 22 as substring.

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 = 1064692 and 1064701.

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, 6575 + ... + 6734.

It is an arithmetic number, because the mean of its divisors is an integer number (123783).

2^1064720 is an apocalyptic number.

1064720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1064720 is an abundant number, since it is smaller than the sum of its proper divisors (1410940).

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

1064720 is a wasteful number, since it uses less digits than its factorization.

1064720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13322 (or 13316 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1064720 is about 1031.8527026664. The cubic root of 1064720 is about 102.1123969262.

The spelling of 1064720 in words is "one million, sixty-four thousand, seven hundred twenty".