290371442 has 4 divisors (see below), whose sum is σ = 435557166. Its totient is φ = 145185720.

The previous prime is 290371439. The next prime is 290371463. The reversal of 290371442 is 244173092.

290371442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 168246841 + 122124601 = 12971^2 + 11051^2 .

It is a junction number, because it is equal to n+sod(n) for n = 290371399 and 290371408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72592859 + ... + 72592862.

Almost surely, 2^290371442 is an apocalyptic number.

290371442 is a deficient number, since it is larger than the sum of its proper divisors (145185724).

290371442 is a wasteful number, since it uses less digits than its factorization.

290371442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145185723.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 290371442 is about 17040.2887886327. The cubic root of 290371442 is about 662.1930735389.

The spelling of 290371442 in words is "two hundred ninety million, three hundred seventy-one thousand, four hundred forty-two".