1232015040 has 168 divisors, whose sum is σ = 4267187808. Its totient is φ = 326246400.

The previous prime is 1232015009. The next prime is 1232015063. The reversal of 1232015040 is 405102321.

It is a super-2 number, since 2×1232015040² = 3035722117572403200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433464 + ... + 436296.

Almost surely, 2^1232015040 is an apocalyptic number.

1232015040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232015040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133593904).

1232015040 is an abundant number, since it is smaller than the sum of its proper divisors (3035172768).

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

1232015040 is a wasteful number, since it uses less digits than its factorization.

1232015040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007 (or 2994 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1232015040 is about 35100.0717947984. The cubic root of 1232015040 is about 1072.0260445146.

Adding to 1232015040 its reverse (405102321), we get a palindrome (1637117361).

The spelling of 1232015040 in words is "one billion, two hundred thirty-two million, fifteen thousand, forty".