1249540 has 12 divisors (see below), whose sum is σ = 2624076. Its totient is φ = 499808.

The previous prime is 1249531. The next prime is 1249559. The reversal of 1249540 is 459421.

It can be written as a sum of positive squares in 2 ways, for example, as 331776 + 917764 = 576^2 + 958^2 .

It is a super-2 number, since 2×1249540² = 3122700423200, which contains 22 as substring.

It is a congruent number.

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, 31219 + ... + 31258.

It is an arithmetic number, because the mean of its divisors is an integer number (218673).

2^1249540 is an apocalyptic number.

1249540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1249540 is an abundant number, since it is smaller than the sum of its proper divisors (1374536).

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

1249540 is a wasteful number, since it uses less digits than its factorization.

1249540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62486 (or 62484 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1249540 is about 1117.8282515664. The cubic root of 1249540 is about 107.7085190143.

The spelling of 1249540 in words is "one million, two hundred forty-nine thousand, five hundred forty".