42901237 has 8 divisors (see below), whose sum is σ = 44501400. Its totient is φ = 41309184.

The previous prime is 42901231. The next prime is 42901247. The reversal of 42901237 is 73210924.

It can be written as a sum of positive squares in 4 ways, for example, as 3538161 + 39363076 = 1881^2 + 6274^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42901237 - 2¹⁹ = 42376949 is a prime.

It is a super-3 number, since 3×42901237³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42901231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10053 + ... + 13669.

It is an arithmetic number, because the mean of its divisors is an integer number (5562675).

Almost surely, 2^42901237 is an apocalyptic number.

It is an amenable number.

42901237 is a deficient number, since it is larger than the sum of its proper divisors (1600163).

42901237 is a wasteful number, since it uses less digits than its factorization.

42901237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 42901237 is about 6549.9035870767. The cubic root of 42901237 is about 350.0713786394.

The spelling of 42901237 in words is "forty-two million, nine hundred one thousand, two hundred thirty-seven".