1057620 has 24 divisors (see below), whose sum is σ = 2961504. Its totient is φ = 282016.

The previous prime is 1057613. The next prime is 1057631. The reversal of 1057620 is 267501.

It is a super-2 number, since 2×1057620² = 2237120128800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8754 + ... + 8873.

It is an arithmetic number, because the mean of its divisors is an integer number (123396).

2^1057620 is an apocalyptic number.

1057620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057620 is an abundant number, since it is smaller than the sum of its proper divisors (1903884).

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

1057620 is a wasteful number, since it uses less digits than its factorization.

1057620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17639 (or 17637 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1057620 is about 1028.4065344016. The cubic root of 1057620 is about 101.8849144127.

It can be divided in two parts, 10 and 57620, that added together give a triangular number (57630 = T₃₃₉).

The spelling of 1057620 in words is "one million, fifty-seven thousand, six hundred twenty".