1240920230 has 32 divisors (see below), whose sum is σ = 2493393408. Its totient is φ = 440748000.

The previous prime is 1240920209. The next prime is 1240920251. The reversal of 1240920230 is 320290421.

It is an interprime number because it is at equal distance from previous prime (1240920209) and next prime (1240920251).

It is a junction number, because it is equal to n+sod(n) for n = 1240920196 and 1240920205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126446 + ... + 135905.

It is an arithmetic number, because the mean of its divisors is an integer number (77918544).

Almost surely, 2^1240920230 is an apocalyptic number.

1240920230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240920230 is an abundant number, since it is smaller than the sum of its proper divisors (1252473178).

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

1240920230 is a wasteful number, since it uses less digits than its factorization.

1240920230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262412.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1240920230 is about 35226.6976879752. The cubic root of 1240920230 is about 1074.6027679623.

The spelling of 1240920230 in words is "one billion, two hundred forty million, nine hundred twenty thousand, two hundred thirty".