40222515 has 48 divisors (see below), whose sum is σ = 69598368. Its totient is φ = 19819008.

The previous prime is 40222471. The next prime is 40222529. The reversal of 40222515 is 51522204.

It is a happy number.

It is not a de Polignac number, because 40222515 - 2⁷ = 40222387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40222491 and 40222500.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 293527 + ... + 293663.

It is an arithmetic number, because the mean of its divisors is an integer number (1449966).

Almost surely, 2^40222515 is an apocalyptic number.

40222515 is a deficient number, since it is larger than the sum of its proper divisors (29375853).

40222515 is a wasteful number, since it uses less digits than its factorization.

40222515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 40222515 is about 6342.1222788590. The cubic root of 40222515 is about 342.6281758703.

Adding to 40222515 its reverse (51522204), we get a palindrome (91744719).

The spelling of 40222515 in words is "forty million, two hundred twenty-two thousand, five hundred fifteen".