290742480 has 480 divisors, whose sum is σ = 1211172480. Its totient is φ = 63866880.

The previous prime is 290742469. The next prime is 290742493. The reversal of 290742480 is 84247092.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4339407 + ... + 4339473.

It is an arithmetic number, because the mean of its divisors is an integer number (2523276).

Almost surely, 2^290742480 is an apocalyptic number.

290742480 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 290742480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605586240).

290742480 is an abundant number, since it is smaller than the sum of its proper divisors (920430000).

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

290742480 is a wasteful number, since it uses less digits than its factorization.

290742480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 290742480 is about 17051.1723937095. The cubic root of 290742480 is about 662.4750046343.

The spelling of 290742480 in words is "two hundred ninety million, seven hundred forty-two thousand, four hundred eighty".