47290238 has 4 divisors (see below), whose sum is σ = 70935360. Its totient is φ = 23645118.

The previous prime is 47290223. The next prime is 47290241. The reversal of 47290238 is 83209274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83209274 = 2 ⋅41604637.

It is a super-2 number, since 2×47290238² = 4472733220193288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47290198 and 47290207.

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, 11822558 + ... + 11822561.

It is an arithmetic number, because the mean of its divisors is an integer number (17733840).

Almost surely, 2^47290238 is an apocalyptic number.

47290238 is a deficient number, since it is larger than the sum of its proper divisors (23645122).

47290238 is a wasteful number, since it uses less digits than its factorization.

47290238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23645121.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 47290238 is about 6876.7898033894. The cubic root of 47290238 is about 361.6239341113.

The spelling of 47290238 in words is "forty-seven million, two hundred ninety thousand, two hundred thirty-eight".