1250040 has 64 divisors (see below), whose sum is σ = 4095360. Its totient is φ = 302720.

The previous prime is 1250023. The next prime is 1250057. The reversal of 1250040 is 400521.

1250040 = T₄₉₅ + T₄₉₆ + ... + T₅₀₄.

It is an interprime number because it is at equal distance from previous prime (1250023) and next prime (1250057).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1249998 and 1250025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 847 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (63990).

2^1250040 is an apocalyptic number.

1250040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1250040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047680).

1250040 is an abundant number, since it is smaller than the sum of its proper divisors (2845320).

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

1250040 is a wasteful number, since it uses less digits than its factorization.

1250040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 968 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 1250040 is about 1118.0518771506. The cubic root of 1250040 is about 107.7228835212.

Adding to 1250040 its reverse (400521), we get a palindrome (1650561).

The spelling of 1250040 in words is "one million, two hundred fifty thousand, forty".