1140243510 has 32 divisors (see below), whose sum is σ = 3127525632. Its totient is φ = 260627040.

The previous prime is 1140243493. The next prime is 1140243529. The reversal of 1140243510 is 153420411.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 2714656 + ... + 2715075.

It is an arithmetic number, because the mean of its divisors is an integer number (97735176).

Almost surely, 2^1140243510 is an apocalyptic number.

1140243510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1140243510 is an abundant number, since it is smaller than the sum of its proper divisors (1987282122).

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

1140243510 is a wasteful number, since it uses less digits than its factorization.

1140243510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429748.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1140243510 is about 33767.4919116004. The cubic root of 1140243510 is about 1044.7183020072.

Adding to 1140243510 its reverse (153420411), we get a palindrome (1293663921).

It can be divided in two parts, 1140 and 243510, that added together give a triangular number (244650 = T₆₉₉).

The spelling of 1140243510 in words is "one billion, one hundred forty million, two hundred forty-three thousand, five hundred ten".