1009358388 has 96 divisors (see below), whose sum is σ = 2728427520. Its totient is φ = 322328160.

The previous prime is 1009358387. The next prime is 1009358407. The reversal of 1009358388 is 8838539001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009358387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343381 + ... + 346307.

It is an arithmetic number, because the mean of its divisors is an integer number (28421120).

Almost surely, 2^1009358388 is an apocalyptic number.

1009358388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1009358388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1364213760).

1009358388 is an abundant number, since it is smaller than the sum of its proper divisors (1719069132).

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

1009358388 is a wasteful number, since it uses less digits than its factorization.

1009358388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074 (or 3066 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1009358388 is about 31770.4011306121. The cubic root of 1009358388 is about 1003.1097818986.

The spelling of 1009358388 in words is "one billion, nine million, three hundred fifty-eight thousand, three hundred eighty-eight".