290425500 has 240 divisors, whose sum is σ = 970377408. Its totient is φ = 75600000.

The previous prime is 290425451. The next prime is 290425519. The reversal of 290425500 is 5524092.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2875450 + ... + 2875550.

Almost surely, 2^290425500 is an apocalyptic number.

290425500 is a gapful number since it is divisible by the number (20) 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 290425500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485188704).

290425500 is an abundant number, since it is smaller than the sum of its proper divisors (679951908).

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

290425500 is a wasteful number, since it uses less digits than its factorization.

290425500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 290425500 is about 17041.8748968533. The cubic root of 290425500 is about 662.2341641408.

Adding to 290425500 its reverse (5524092), we get a palindrome (295949592).

The spelling of 290425500 in words is "two hundred ninety million, four hundred twenty-five thousand, five hundred".