890452620 has 72 divisors (see below), whose sum is σ = 2711938320. Its totient is φ = 236496000.

The previous prime is 890452597. The next prime is 890452631. The reversal of 890452620 is 26254098.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35326 + ... + 55034.

It is an arithmetic number, because the mean of its divisors is an integer number (37665810).

Almost surely, 2^890452620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890452620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1355969160).

890452620 is an abundant number, since it is smaller than the sum of its proper divisors (1821485700).

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

890452620 is a wasteful number, since it uses less digits than its factorization.

890452620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19975 (or 19970 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 890452620 is about 29840.4527445547. The cubic root of 890452620 is about 962.0632058667.

The spelling of 890452620 in words is "eight hundred ninety million, four hundred fifty-two thousand, six hundred twenty".