1021332040 has 32 divisors (see below), whose sum is σ = 2304650880. Its totient is φ = 407349952.

The previous prime is 1021332029. The next prime is 1021332041. The reversal of 1021332040 is 402331201.

It is a happy number.

It is a super-3 number, since 3×1021332040³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021332041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22912 + ... + 50671.

It is an arithmetic number, because the mean of its divisors is an integer number (72020340).

Almost surely, 2^1021332040 is an apocalyptic number.

1021332040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021332040 is an abundant number, since it is smaller than the sum of its proper divisors (1283318840).

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

1021332040 is a wasteful number, since it uses less digits than its factorization.

1021332040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73941 (or 73937 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1021332040 is about 31958.2859365142. The cubic root of 1021332040 is about 1007.0607090537.

Adding to 1021332040 its reverse (402331201), we get a palindrome (1423663241).

The spelling of 1021332040 in words is "one billion, twenty-one million, three hundred thirty-two thousand, forty".