904405340 has 24 divisors (see below), whose sum is σ = 1903912080. Its totient is φ = 360874368.

The previous prime is 904405309. The next prime is 904405343. The reversal of 904405340 is 43504409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904405343) 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, 47102 + ... + 63461.

It is an arithmetic number, because the mean of its divisors is an integer number (79329670).

Almost surely, 2^904405340 is an apocalyptic number.

It is an amenable number.

904405340 is an abundant number, since it is smaller than the sum of its proper divisors (999506740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

904405340 is a wasteful number, since it uses less digits than its factorization.

904405340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110981 (or 110979 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 904405340 is about 30073.3327052390. The cubic root of 904405340 is about 967.0621209335.

Adding to 904405340 its reverse (43504409), we get a palindrome (947909749).

The spelling of 904405340 in words is "nine hundred four million, four hundred five thousand, three hundred forty".