10642040 has 16 divisors (see below), whose sum is σ = 23944680. Its totient is φ = 4256800.

The previous prime is 10642039. The next prime is 10642081. The reversal of 10642040 is 4024601.

It is a super-2 number, since 2×10642040² = 226506030723200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132986 + ... + 133065.

Almost surely, 2^10642040 is an apocalyptic number.

10642040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10642040 is an abundant number, since it is smaller than the sum of its proper divisors (13302640).

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

10642040 is a wasteful number, since it uses less digits than its factorization.

10642040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266062 (or 266058 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 10642040 is about 3262.2139721361. The cubic root of 10642040 is about 219.9589455073.

Adding to 10642040 its reverse (4024601), we get a palindrome (14666641).

The spelling of 10642040 in words is "ten million, six hundred forty-two thousand, forty".