40090615 has 8 divisors (see below), whose sum is σ = 49767840. Its totient is φ = 30966432.

The previous prime is 40090601. The next prime is 40090621. The reversal of 40090615 is 51609004.

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

It is not a de Polignac number, because 40090615 - 2⁹ = 40090103 is a prime.

It is a super-2 number, since 2×40090615² = 3214514822156450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40090615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138099 + ... + 138388.

It is an arithmetic number, because the mean of its divisors is an integer number (6220980).

Almost surely, 2^40090615 is an apocalyptic number.

40090615 is a deficient number, since it is larger than the sum of its proper divisors (9677225).

40090615 is a wasteful number, since it uses less digits than its factorization.

40090615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276521.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 40090615 is about 6331.7150125381. The cubic root of 40090615 is about 342.2532436874.

Adding to 40090615 its reverse (51609004), we get a palindrome (91699619).

The spelling of 40090615 in words is "forty million, ninety thousand, six hundred fifteen".