290970542 has 4 divisors (see below), whose sum is σ = 436455816. Its totient is φ = 145485270.

The previous prime is 290970523. The next prime is 290970587. The reversal of 290970542 is 245079092.

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

It is a junction number, because it is equal to n+sod(n) for n = 290970496 and 290970505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72742634 + ... + 72742637.

It is an arithmetic number, because the mean of its divisors is an integer number (109113954).

Almost surely, 2^290970542 is an apocalyptic number.

290970542 is a deficient number, since it is larger than the sum of its proper divisors (145485274).

290970542 is a wasteful number, since it uses less digits than its factorization.

290970542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145485273.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 290970542 is about 17057.8586581083. The cubic root of 290970542 is about 662.6481772271.

The spelling of 290970542 in words is "two hundred ninety million, nine hundred seventy thousand, five hundred forty-two".