1253440510 has 16 divisors (see below), whose sum is σ = 2578506336. Its totient is φ = 429751008.

The previous prime is 1253440501. The next prime is 1253440541. The reversal of 1253440510 is 150443521.

It is a happy number.

It is a super-2 number, since 2×1253440510² = 3142226224218120200, 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 7 ways as a sum of consecutive naturals, for example, 8953077 + ... + 8953216.

It is an arithmetic number, because the mean of its divisors is an integer number (161156646).

Almost surely, 2^1253440510 is an apocalyptic number.

1253440510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253440510 is an abundant number, since it is smaller than the sum of its proper divisors (1325065826).

1253440510 is a wasteful number, since it uses less digits than its factorization.

1253440510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17906307.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1253440510 is about 35403.9617839586. The cubic root of 1253440510 is about 1078.2047535316.

The spelling of 1253440510 in words is "one billion, two hundred fifty-three million, four hundred forty thousand, five hundred ten".