1190426640 has 320 divisors, whose sum is σ = 4238728704. Its totient is φ = 274120704.

The previous prime is 1190426621. The next prime is 1190426647. The reversal of 1190426640 is 466240911.

It is not an unprimeable number, because it can be changed into a prime (1190426647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3803124 + ... + 3803436.

Almost surely, 2^1190426640 is an apocalyptic number.

1190426640 is a gapful number since it is divisible by the number (10) 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 1190426640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2119364352).

1190426640 is an abundant number, since it is smaller than the sum of its proper divisors (3048302064).

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

1190426640 is a wasteful number, since it uses less digits than its factorization.

1190426640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1190426640 is about 34502.5599050273. The cubic root of 1190426640 is about 1059.8251283852.

The spelling of 1190426640 in words is "one billion, one hundred ninety million, four hundred twenty-six thousand, six hundred forty".