1253020344 has 32 divisors (see below), whose sum is σ = 3205403520. Its totient is φ = 407959776.

The previous prime is 1253020277. The next prime is 1253020463. The reversal of 1253020344 is 4430203521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606052 + ... + 608115.

It is an arithmetic number, because the mean of its divisors is an integer number (100168860).

Almost surely, 2^1253020344 is an apocalyptic number.

It is an amenable number.

1253020344 is an abundant number, since it is smaller than the sum of its proper divisors (1952383176).

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

1253020344 is a wasteful number, since it uses less digits than its factorization.

1253020344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214219 (or 1214215 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1253020344 is about 35398.0274026675. The cubic root of 1253020344 is about 1078.0842650032.

Adding to 1253020344 its reverse (4430203521), we get a palindrome (5683223865).

The spelling of 1253020344 in words is "one billion, two hundred fifty-three million, twenty thousand, three hundred forty-four".