40642415 has 8 divisors (see below), whose sum is σ = 53204688. Its totient is φ = 29558080.

The previous prime is 40642411. The next prime is 40642417. The reversal of 40642415 is 51424604.

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

It is not a de Polignac number, because 40642415 - 2² = 40642411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40642411) 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, 369422 + ... + 369531.

It is an arithmetic number, because the mean of its divisors is an integer number (6650586).

Almost surely, 2^40642415 is an apocalyptic number.

40642415 is a deficient number, since it is larger than the sum of its proper divisors (12562273).

40642415 is a wasteful number, since it uses less digits than its factorization.

40642415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738969.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 40642415 is about 6375.1403906110. The cubic root of 40642415 is about 343.8163314420.

The spelling of 40642415 in words is "forty million, six hundred forty-two thousand, four hundred fifteen".