40297694 has 4 divisors (see below), whose sum is σ = 60446544. Its totient is φ = 20148846.

The previous prime is 40297669. The next prime is 40297703. The reversal of 40297694 is 49679204.

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, 10074422 + ... + 10074425.

It is an arithmetic number, because the mean of its divisors is an integer number (15111636).

Almost surely, 2^40297694 is an apocalyptic number.

40297694 is a deficient number, since it is larger than the sum of its proper divisors (20148850).

40297694 is a wasteful number, since it uses less digits than its factorization.

40297694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20148849.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 40297694 is about 6348.0464711595. The cubic root of 40297694 is about 342.8415092243.

The spelling of 40297694 in words is "forty million, two hundred ninety-seven thousand, six hundred ninety-four".