290513940 has 24 divisors (see below), whose sum is σ = 813439200. Its totient is φ = 77470368.

The previous prime is 290513917. The next prime is 290513941. The reversal of 290513940 is 49315092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290513941) 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, 2420890 + ... + 2421009.

It is an arithmetic number, because the mean of its divisors is an integer number (33893300).

Almost surely, 2^290513940 is an apocalyptic number.

290513940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290513940 is an abundant number, since it is smaller than the sum of its proper divisors (522925260).

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

290513940 is a wasteful number, since it uses less digits than its factorization.

290513940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841911 (or 4841909 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 290513940 is about 17044.4694842638. The cubic root of 290513940 is about 662.3013782174.

The spelling of 290513940 in words is "two hundred ninety million, five hundred thirteen thousand, nine hundred forty".