290383872 has 96 divisors (see below), whose sum is σ = 781784640. Its totient is φ = 95846400.

The previous prime is 290383871. The next prime is 290383879. The reversal of 290383872 is 278383092.

It is a tau number, because it is divible by the number of its divisors (96).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290383871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927588 + ... + 927900.

It is an arithmetic number, because the mean of its divisors is an integer number (8143590).

Almost surely, 2^290383872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290383872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390892320).

290383872 is an abundant number, since it is smaller than the sum of its proper divisors (491400768).

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

290383872 is a wasteful number, since it uses less digits than its factorization.

290383872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 290383872 is about 17040.6535085953. The cubic root of 290383872 is about 662.2025222900.

The spelling of 290383872 in words is "two hundred ninety million, three hundred eighty-three thousand, eight hundred seventy-two".