1457550 has 72 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 374400.

The previous prime is 1457513. The next prime is 1457551. The reversal of 1457550 is 557541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457551) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18411 + ... + 18489.

It is an arithmetic number, because the mean of its divisors is an integer number (56420).

2^1457550 is an apocalyptic number.

1457550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1457550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031120).

1457550 is an abundant number, since it is smaller than the sum of its proper divisors (2604690).

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

1457550 is a wasteful number, since it uses less digits than its factorization.

1457550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 1457550 is about 1207.2903544715. The cubic root of 1457550 is about 113.3812273545.

Subtracting from 1457550 its reverse (557541), we obtain a palindrome (900009).

The spelling of 1457550 in words is "one million, four hundred fifty-seven thousand, five hundred fifty".