908421020 has 24 divisors (see below), whose sum is σ = 2054429664. Its totient is φ = 335416896.

The previous prime is 908421013. The next prime is 908421023. The reversal of 908421020 is 20124809.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (908421023) 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, 1746704 + ... + 1747223.

It is an arithmetic number, because the mean of its divisors is an integer number (85601236).

Almost surely, 2^908421020 is an apocalyptic number.

It is an amenable number.

908421020 is an abundant number, since it is smaller than the sum of its proper divisors (1146008644).

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

908421020 is a wasteful number, since it uses less digits than its factorization.

908421020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493949 (or 3493947 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 908421020 is about 30140.0235567260. The cubic root of 908421020 is about 968.4913025775.

Adding to 908421020 its reverse (20124809), we get a palindrome (928545829).

The spelling of 908421020 in words is "nine hundred eight million, four hundred twenty-one thousand, twenty".