40220115 has 32 divisors (see below), whose sum is σ = 69672960. Its totient is φ = 19694976.

The previous prime is 40220107. The next prime is 40220137. The reversal of 40220115 is 51102204.

It is not a de Polignac number, because 40220115 - 2³ = 40220107 is a prime.

It is a super-2 number, since 2×40220115² = 3235315301226450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 40220094 and 40220103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46174 + ... + 47036.

It is an arithmetic number, because the mean of its divisors is an integer number (2177280).

Almost surely, 2^40220115 is an apocalyptic number.

40220115 is a deficient number, since it is larger than the sum of its proper divisors (29452845).

40220115 is a wasteful number, since it uses less digits than its factorization.

40220115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 40220115 is about 6341.9330649259. The cubic root of 40220115 is about 342.6213610803.

Adding to 40220115 its reverse (51102204), we get a palindrome (91322319).

The spelling of 40220115 in words is "forty million, two hundred twenty thousand, one hundred fifteen".