42409037 has 4 divisors (see below), whose sum is σ = 46264416. Its totient is φ = 38553660.

The previous prime is 42409027. The next prime is 42409097. The reversal of 42409037 is 73090424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42409037 - 2⁴ = 42409021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42409027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1927673 + ... + 1927694.

It is an arithmetic number, because the mean of its divisors is an integer number (11566104).

Almost surely, 2^42409037 is an apocalyptic number.

It is an amenable number.

42409037 is a deficient number, since it is larger than the sum of its proper divisors (3855379).

42409037 is a wasteful number, since it uses less digits than its factorization.

42409037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855378.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 42409037 is about 6512.2221245900. Note that the first 3 decimals coincide. The cubic root of 42409037 is about 348.7274522834.

The spelling of 42409037 in words is "forty-two million, four hundred nine thousand, thirty-seven".