1253890 has 16 divisors (see below), whose sum is σ = 2462400. Its totient is φ = 455920.

The previous prime is 1253887. The next prime is 1253897. The reversal of 1253890 is 983521.

It is not an unprimeable number, because it can be changed into a prime (1253897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5590 + ... + 5809.

It is an arithmetic number, because the mean of its divisors is an integer number (153900).

2^1253890 is an apocalyptic number.

1253890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253890 is a deficient number, since it is larger than the sum of its proper divisors (1208510).

1253890 is a wasteful number, since it uses less digits than its factorization.

1253890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1253890 is about 1119.7722982821. The cubic root of 1253890 is about 107.8333621324.

The spelling of 1253890 in words is "one million, two hundred fifty-three thousand, eight hundred ninety".