902638530 has 96 divisors (see below), whose sum is σ = 2385137664. Its totient is φ = 236815488.

The previous prime is 902638481. The next prime is 902638531. The reversal of 902638530 is 35836209.

902638530 is a `hidden beast` number, since 90 + 2 + 6 + 38 + 530 = 666.

It is not an unprimeable number, because it can be changed into a prime (902638531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1794259 + ... + 1794761.

It is an arithmetic number, because the mean of its divisors is an integer number (24845184).

Almost surely, 2^902638530 is an apocalyptic number.

902638530 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 902638530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1192568832).

902638530 is an abundant number, since it is smaller than the sum of its proper divisors (1482499134).

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

902638530 is a wasteful number, since it uses less digits than its factorization.

902638530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 902638530 is about 30043.9433164157. The cubic root of 902638530 is about 966.4319724862.

The spelling of 902638530 in words is "nine hundred two million, six hundred thirty-eight thousand, five hundred thirty".