9072009402 has 16 divisors (see below), whose sum is σ = 18586556352. Its totient is φ = 2950246880.

The previous prime is 9072009377. The next prime is 9072009403. The reversal of 9072009402 is 2049002709.

It is not an unprimeable number, because it can be changed into a prime (9072009403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18438798 + ... + 18439289.

It is an arithmetic number, because the mean of its divisors is an integer number (1161659772).

Almost surely, 2^9072009402 is an apocalyptic number.

9072009402 is an abundant number, since it is smaller than the sum of its proper divisors (9514546950).

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

9072009402 is a wasteful number, since it uses less digits than its factorization.

9072009402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36878133.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 9072009402 is about 95247.0965541732. The cubic root of 9072009402 is about 2085.6167074255.

Adding to 9072009402 its reverse (2049002709), we get a palindrome (11121012111).

The spelling of 9072009402 in words is "nine billion, seventy-two million, nine thousand, four hundred two".