10190640 has 40 divisors (see below), whose sum is σ = 31591728. Its totient is φ = 2717440.

The previous prime is 10190639. The next prime is 10190641. The reversal of 10190640 is 4609101.

It is an interprime number because it is at equal distance from previous prime (10190639) and next prime (10190641).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (10190641) 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, 20991 + ... + 21470.

Almost surely, 2^10190640 is an apocalyptic number.

10190640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10190640 is an abundant number, since it is smaller than the sum of its proper divisors (21401088).

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

10190640 is a wasteful number, since it uses less digits than its factorization.

10190640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42477 (or 42471 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 10190640 is about 3192.2781833669. The cubic root of 10190640 is about 216.8039314293.

Adding to 10190640 its reverse (4609101), we get a palindrome (14799741).

The spelling of 10190640 in words is "ten million, one hundred ninety thousand, six hundred forty".