42032989 has 2 divisors, whose sum is σ = 42032990. Its totient is φ = 42032988.

The previous prime is 42032953. The next prime is 42033007. The reversal of 42032989 is 98923024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33524100 + 8508889 = 5790^2 + 2917^2 .

It is a cyclic number.

It is not a de Polignac number, because 42032989 - 2¹⁷ = 41901917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42033989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21016494 + 21016495.

It is an arithmetic number, because the mean of its divisors is an integer number (21016495).

Almost surely, 2^42032989 is an apocalyptic number.

It is an amenable number.

42032989 is a deficient number, since it is larger than the sum of its proper divisors (1).

42032989 is an equidigital number, since it uses as much as digits as its factorization.

42032989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 42032989 is about 6483.2853554352. The cubic root of 42032989 is about 347.6936491183.

The spelling of 42032989 in words is "forty-two million, thirty-two thousand, nine hundred eighty-nine".