1031390088 has 128 divisors (see below), whose sum is σ = 2758778880. Its totient is φ = 320785920.

The previous prime is 1031390077. The next prime is 1031390089. The reversal of 1031390088 is 8800931301.

It is not an unprimeable number, because it can be changed into a prime (1031390089) 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, 3295020 + ... + 3295332.

It is an arithmetic number, because the mean of its divisors is an integer number (21552960).

Almost surely, 2^1031390088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031390088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379389440).

1031390088 is an abundant number, since it is smaller than the sum of its proper divisors (1727388792).

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

1031390088 is a wasteful number, since it uses less digits than its factorization.

1031390088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1031390088 is about 32115.2625397956. The cubic root of 1031390088 is about 1010.3557509009.

The spelling of 1031390088 in words is "one billion, thirty-one million, three hundred ninety thousand, eighty-eight".