1009440700 has 36 divisors (see below), whose sum is σ = 2266026840. Its totient is φ = 389851840.

The previous prime is 1009440673. The next prime is 1009440713. The reversal of 1009440700 is 70449001.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171142 + ... + 176941.

It is an arithmetic number, because the mean of its divisors is an integer number (62945190).

Almost surely, 2^1009440700 is an apocalyptic number.

1009440700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1009440700 is an abundant number, since it is smaller than the sum of its proper divisors (1256586140).

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

1009440700 is a wasteful number, since it uses less digits than its factorization.

1009440700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348126 (or 348119 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1009440700 is about 31771.6965237930. The cubic root of 1009440700 is about 1003.1370486352.

Adding to 1009440700 its reverse (70449001), we get a palindrome (1079889701).

The spelling of 1009440700 in words is "one billion, nine million, four hundred forty thousand, seven hundred".