1040032381 has 2 divisors, whose sum is σ = 1040032382. Its totient is φ = 1040032380.

The previous prime is 1040032339. The next prime is 1040032453. The reversal of 1040032381 is 1832300401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 766791481 + 273240900 = 27691^2 + 16530^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040032381 - 2⁹ = 1040031869 is a prime.

It is a super-2 number, since 2×1040032381² = 2163334707057058322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040038381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520016190 + 520016191.

It is an arithmetic number, because the mean of its divisors is an integer number (520016191).

Almost surely, 2^1040032381 is an apocalyptic number.

It is an amenable number.

1040032381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040032381 is an equidigital number, since it uses as much as digits as its factorization.

1040032381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1040032381 is about 32249.5330353790. The cubic root of 1040032381 is about 1013.1699188119.

Adding to 1040032381 its reverse (1832300401), we get a palindrome (2872332782).

The spelling of 1040032381 in words is "one billion, forty million, thirty-two thousand, three hundred eighty-one".