1040420408 has 16 divisors (see below), whose sum is σ = 1953126000. Its totient is φ = 519586816.

The previous prime is 1040420393. The next prime is 1040420429. The reversal of 1040420408 is 8040240401.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70793 + ... + 84216.

It is an arithmetic number, because the mean of its divisors is an integer number (122070375).

Almost surely, 2^1040420408 is an apocalyptic number.

It is an amenable number.

1040420408 is a deficient number, since it is larger than the sum of its proper divisors (912705592).

1040420408 is a wasteful number, since it uses less digits than its factorization.

1040420408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155854 (or 155850 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1040420408 is about 32255.5484839430. The cubic root of 1040420408 is about 1013.2959047618.

Adding to 1040420408 its reverse (8040240401), we get a palindrome (9080660809).

The spelling of 1040420408 in words is "one billion, forty million, four hundred twenty thousand, four hundred eight".