42409701 has 12 divisors (see below), whose sum is σ = 62263500. Its totient is φ = 27809280.

The previous prime is 42409681. The next prime is 42409751. The reversal of 42409701 is 10790424.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 497025 + 41912676 = 705^2 + 6474^2 .

It is not a de Polignac number, because 42409701 - 2⁶ = 42409637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42409751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38076 + ... + 39173.

It is an arithmetic number, because the mean of its divisors is an integer number (5188625).

Almost surely, 2^42409701 is an apocalyptic number.

It is an amenable number.

42409701 is a deficient number, since it is larger than the sum of its proper divisors (19853799).

42409701 is a wasteful number, since it uses less digits than its factorization.

42409701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77316 (or 77313 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 42409701 is about 6512.2731054525. The cubic root of 42409701 is about 348.7292722872.

The spelling of 42409701 in words is "forty-two million, four hundred nine thousand, seven hundred one".