1040421531 has 8 divisors (see below), whose sum is σ = 1387970640. Its totient is φ = 693243392.

The previous prime is 1040421511. The next prime is 1040421541. The reversal of 1040421531 is 1351240401.

1040421531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1040421531 - 2⁶ = 1040421467 is a prime.

It is a super-2 number, since 2×1040421531² = 2164953924336767922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1040421498 and 1040421507.

It is not an unprimeable number, because it can be changed into a prime (1040421511) 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, 86130 + ... + 97463.

It is an arithmetic number, because the mean of its divisors is an integer number (173496330).

Almost surely, 2^1040421531 is an apocalyptic number.

1040421531 is a deficient number, since it is larger than the sum of its proper divisors (347549109).

1040421531 is a wasteful number, since it uses less digits than its factorization.

1040421531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185485.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1040421531 is about 32255.5658917961. The cubic root of 1040421531 is about 1013.2962693358.

Adding to 1040421531 its reverse (1351240401), we get a palindrome (2391661932).

The spelling of 1040421531 in words is "one billion, forty million, four hundred twenty-one thousand, five hundred thirty-one".