290940039093 has 24 divisors (see below), whose sum is σ = 426441555904. Its totient is φ = 176306581440.

The previous prime is 290940039083. The next prime is 290940039097. The reversal of 290940039093 is 390930049092.

It is a happy number.

It is not a de Polignac number, because 290940039093 - 2⁶ = 290940039029 is a prime.

It is a super-2 number, since 2×290940039093² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290940039097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3392721 + ... + 3477417.

Almost surely, 2^290940039093 is an apocalyptic number.

It is an amenable number.

290940039093 is a deficient number, since it is larger than the sum of its proper divisors (135501516811).

290940039093 is a wasteful number, since it uses less digits than its factorization.

290940039093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94185 (or 94174 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 48.

Subtracting 290940039093 from its reverse (390930049092), we obtain a palindrome (99990009999).

The spelling of 290940039093 in words is "two hundred ninety billion, nine hundred forty million, thirty-nine thousand, ninety-three".