42997941 has 18 divisors (see below), whose sum is σ = 72248982. Its totient is φ = 24570000.

The previous prime is 42997937. The next prime is 42997943. The reversal of 42997941 is 14979924.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39425841 + 3572100 = 6279^2 + 1890^2 .

It is not a de Polignac number, because 42997941 - 2² = 42997937 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42997943) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 48310 + ... + 49191.

Almost surely, 2^42997941 is an apocalyptic number.

It is an amenable number.

42997941 is a deficient number, since it is larger than the sum of its proper divisors (29251041).

42997941 is a wasteful number, since it uses less digits than its factorization.

42997941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97521 (or 97511 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 42997941 is about 6557.2815251444. The cubic root of 42997941 is about 350.3342140916.

The spelling of 42997941 in words is "forty-two million, nine hundred ninety-seven thousand, nine hundred forty-one".