42649694 has 4 divisors (see below), whose sum is σ = 63974544. Its totient is φ = 21324846.

The previous prime is 42649687. The next prime is 42649723. The reversal of 42649694 is 49694624.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10662422 + ... + 10662425.

It is an arithmetic number, because the mean of its divisors is an integer number (15993636).

Almost surely, 2^42649694 is an apocalyptic number.

42649694 is a deficient number, since it is larger than the sum of its proper divisors (21324850).

42649694 is a wasteful number, since it uses less digits than its factorization.

42649694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21324849.

The product of its digits is 373248, while the sum is 44.

The square root of 42649694 is about 6530.6733190384. The cubic root of 42649694 is about 349.3858454054.

The spelling of 42649694 in words is "forty-two million, six hundred forty-nine thousand, six hundred ninety-four".