1254224140 has 96 divisors (see below), whose sum is σ = 2917119744. Its totient is φ = 450078720.

The previous prime is 1254224137. The next prime is 1254224221. The reversal of 1254224140 is 414224521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2407080 + ... + 2407600.

It is an arithmetic number, because the mean of its divisors is an integer number (30386664).

Almost surely, 2^1254224140 is an apocalyptic number.

1254224140 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 1254224140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458559872).

1254224140 is an abundant number, since it is smaller than the sum of its proper divisors (1662895604).

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

1254224140 is a wasteful number, since it uses less digits than its factorization.

1254224140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1254224140 is about 35415.0270365561. The cubic root of 1254224140 is about 1078.4293985707.

Adding to 1254224140 its reverse (414224521), we get a palindrome (1668448661).

The spelling of 1254224140 in words is "one billion, two hundred fifty-four million, two hundred twenty-four thousand, one hundred forty".