290516426 has 8 divisors (see below), whose sum is σ = 443996964. Its totient is φ = 142517440.

The previous prime is 290516423. The next prime is 290516431. The reversal of 290516426 is 624615092.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 267486025 + 23030401 = 16355^2 + 4799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (290516423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370255 + ... + 1370466.

Almost surely, 2^290516426 is an apocalyptic number.

290516426 is a deficient number, since it is larger than the sum of its proper divisors (153480538).

290516426 is a wasteful number, since it uses less digits than its factorization.

290516426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740776.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 290516426 is about 17044.5424109889. The cubic root of 290516426 is about 662.3032673712.

The spelling of 290516426 in words is "two hundred ninety million, five hundred sixteen thousand, four hundred twenty-six".