290429144 has 8 divisors (see below), whose sum is σ = 544554660. Its totient is φ = 145214568.

The previous prime is 290429143. The next prime is 290429147. The reversal of 290429144 is 441924092.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290429143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18151814 + ... + 18151829.

Almost surely, 2^290429144 is an apocalyptic number.

It is an amenable number.

290429144 is a deficient number, since it is larger than the sum of its proper divisors (254125516).

290429144 is a wasteful number, since it uses less digits than its factorization.

290429144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36303649 (or 36303645 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 290429144 is about 17041.9818096370. The cubic root of 290429144 is about 662.2369338370.

The spelling of 290429144 in words is "two hundred ninety million, four hundred twenty-nine thousand, one hundred forty-four".