46018381 has 2 divisors, whose sum is σ = 46018382. Its totient is φ = 46018380.

The previous prime is 46018309. The next prime is 46018387. The reversal of 46018381 is 18381064.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38862756 + 7155625 = 6234^2 + 2675^2 .

It is a cyclic number.

It is not a de Polignac number, because 46018381 - 2⁷ = 46018253 is a prime.

It is a super-2 number, since 2×46018381² = 4235382779722322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46018387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23009190 + 23009191.

It is an arithmetic number, because the mean of its divisors is an integer number (23009191).

Almost surely, 2^46018381 is an apocalyptic number.

It is an amenable number.

46018381 is a deficient number, since it is larger than the sum of its proper divisors (1).

46018381 is an equidigital number, since it uses as much as digits as its factorization.

46018381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 46018381 is about 6783.6849130837. The cubic root of 46018381 is about 358.3525053861.

The spelling of 46018381 in words is "forty-six million, eighteen thousand, three hundred eighty-one".