909244128040 has 64 divisors (see below), whose sum is σ = 2100521808000. Its totient is φ = 354026948352.

The previous prime is 909244128029. The next prime is 909244128049. The reversal of 909244128040 is 40821442909.

909244128040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (909244128049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398140 + ... + 1406059.

It is an arithmetic number, because the mean of its divisors is an integer number (32820653250).

Almost surely, 2^909244128040 is an apocalyptic number.

It is an amenable number.

909244128040 is an abundant number, since it is smaller than the sum of its proper divisors (1191277679960).

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

909244128040 is a wasteful number, since it uses less digits than its factorization.

909244128040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804546 (or 1804542 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 909244128040 in words is "nine hundred nine billion, two hundred forty-four million, one hundred twenty-eight thousand, forty".