1040421225 has 48 divisors (see below), whose sum is σ = 1802424320. Its totient is φ = 528897600.

The previous prime is 1040421203. The next prime is 1040421227. The reversal of 1040421225 is 5221240401.

It is not a de Polignac number, because 1040421225 - 2²¹ = 1038324073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1040421227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152436 + ... + 159114.

Almost surely, 2^1040421225 is an apocalyptic number.

1040421225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040421225 is a deficient number, since it is larger than the sum of its proper divisors (762003095).

1040421225 is a wasteful number, since it uses less digits than its factorization.

1040421225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790 (or 6785 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1040421225 is about 32255.5611484283. The cubic root of 1040421225 is about 1013.2961699951.

Adding to 1040421225 its reverse (5221240401), we get a palindrome (6261661626).

The spelling of 1040421225 in words is "one billion, forty million, four hundred twenty-one thousand, two hundred twenty-five".