1240305630 has 32 divisors (see below), whose sum is σ = 2979478944. Its totient is φ = 330443136.

The previous prime is 1240305623. The next prime is 1240305643. The reversal of 1240305630 is 365030421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240305630.

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, 15004 + ... + 52016.

It is an arithmetic number, because the mean of its divisors is an integer number (93108717).

Almost surely, 2^1240305630 is an apocalyptic number.

1240305630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240305630 is an abundant number, since it is smaller than the sum of its proper divisors (1739173314).

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

1240305630 is a wasteful number, since it uses less digits than its factorization.

1240305630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38140.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1240305630 is about 35217.9731103310. The cubic root of 1240305630 is about 1074.4253297701.

The spelling of 1240305630 in words is "one billion, two hundred forty million, three hundred five thousand, six hundred thirty".