1562240 has 32 divisors (see below), whose sum is σ = 3736260. Its totient is φ = 624640.

The previous prime is 1562219. The next prime is 1562243. The reversal of 1562240 is 422651.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1420864 + 141376 = 1192^2 + 376^2 .

It is a tau number, because it is divible by the number of its divisors (32).

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

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (1562243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581 + ... + 1860.

2^1562240 is an apocalyptic number.

1562240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1562240 is an abundant number, since it is smaller than the sum of its proper divisors (2174020).

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

1562240 is an equidigital number, since it uses as much as digits as its factorization.

1562240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1562240 is about 1249.8959956732. The cubic root of 1562240 is about 116.0332841468.

Adding to 1562240 its reverse (422651), we get a palindrome (1984891).

The spelling of 1562240 in words is "one million, five hundred sixty-two thousand, two hundred forty".