290411940 has 96 divisors (see below), whose sum is σ = 1000823040. Its totient is φ = 61272576.

The previous prime is 290411917. The next prime is 290411951. The reversal of 290411940 is 49114092.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 290411898 and 290411907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21135 + ... + 32054.

It is an arithmetic number, because the mean of its divisors is an integer number (10425240).

Almost surely, 2^290411940 is an apocalyptic number.

290411940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290411940 is an abundant number, since it is smaller than the sum of its proper divisors (710411100).

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

290411940 is a wasteful number, since it uses less digits than its factorization.

290411940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53221 (or 53219 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 290411940 is about 17041.4770486598. The cubic root of 290411940 is about 662.2238573839.

The spelling of 290411940 in words is "two hundred ninety million, four hundred eleven thousand, nine hundred forty".