1240712284 has 24 divisors (see below), whose sum is σ = 2495144288. Its totient is φ = 528793920.

The previous prime is 1240712279. The next prime is 1240712321. The reversal of 1240712284 is 4822170421.

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, 117339 + ... + 127474.

Almost surely, 2^1240712284 is an apocalyptic number.

1240712284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1240712284 is an abundant number, since it is smaller than the sum of its proper divisors (1254432004).

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

1240712284 is a wasteful number, since it uses less digits than its factorization.

1240712284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245005 (or 245003 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 1240712284 is about 35223.7460245216. The cubic root of 1240712284 is about 1074.5427394381.

It can be divided in two parts, 1240712 and 284, that added together give a square (1240996 = 1114²).

The spelling of 1240712284 in words is "one billion, two hundred forty million, seven hundred twelve thousand, two hundred eighty-four".