9197490240 has 252 divisors, whose sum is σ = 33076272684. Its totient is φ = 2345637888.

The previous prime is 9197490193. The next prime is 9197490259. The reversal of 9197490240 is 420947919.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2523253824 + 6674236416 = 50232^2 + 81696^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1520502 + ... + 1526538.

Almost surely, 2^9197490240 is an apocalyptic number.

9197490240 is a gapful number since it is divisible by the number (90) 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 9197490240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16538136342).

9197490240 is an abundant number, since it is smaller than the sum of its proper divisors (23878782444).

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

9197490240 is a wasteful number, since it uses less digits than its factorization.

9197490240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106 (or 6070 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 9197490240 is about 95903.5465454745. The cubic root of 9197490240 is about 2095.1885492075.

The spelling of 9197490240 in words is "nine billion, one hundred ninety-seven million, four hundred ninety thousand, two hundred forty".