1040258421 has 12 divisors (see below), whose sum is σ = 1567926048. Its totient is φ = 663353064.

The previous prime is 1040258419. The next prime is 1040258447. The reversal of 1040258421 is 1248520401.

It is not a de Polignac number, because 1040258421 - 2¹ = 1040258419 is a prime.

It is a super-2 number, since 2×1040258421² = 2164275164922826482, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040258411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2512495 + ... + 2512908.

It is an arithmetic number, because the mean of its divisors is an integer number (130660504).

Almost surely, 2^1040258421 is an apocalyptic number.

It is an amenable number.

1040258421 is a deficient number, since it is larger than the sum of its proper divisors (527667627).

1040258421 is a wasteful number, since it uses less digits than its factorization.

1040258421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025432 (or 5025429 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 1040258421 is about 32253.0373918488. The cubic root of 1040258421 is about 1013.2433140712.

Adding to 1040258421 its reverse (1248520401), we get a palindrome (2288778822).

The spelling of 1040258421 in words is "one billion, forty million, two hundred fifty-eight thousand, four hundred twenty-one".