1012423240 has 32 divisors (see below), whose sum is σ = 2326423680. Its totient is φ = 396352192.

The previous prime is 1012423231. The next prime is 1012423249. The reversal of 1012423240 is 423242101.

It is an interprime number because it is at equal distance from previous prime (1012423231) and next prime (1012423249).

It is not an unprimeable number, because it can be changed into a prime (1012423249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267382 + ... + 271141.

It is an arithmetic number, because the mean of its divisors is an integer number (72700740).

Almost surely, 2^1012423240 is an apocalyptic number.

1012423240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012423240 is an abundant number, since it is smaller than the sum of its proper divisors (1314000440).

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

1012423240 is a wasteful number, since it uses less digits than its factorization.

1012423240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538581 (or 538577 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1012423240 is about 31818.5989634993. The cubic root of 1012423240 is about 1004.1240488409.

Adding to 1012423240 its reverse (423242101), we get a palindrome (1435665341).

The spelling of 1012423240 in words is "one billion, twelve million, four hundred twenty-three thousand, two hundred forty".