40221526 has 16 divisors (see below), whose sum is σ = 63159264. Its totient is φ = 19174144.

The previous prime is 40221523. The next prime is 40221529. The reversal of 40221526 is 62512204.

It is an interprime number because it is at equal distance from previous prime (40221523) and next prime (40221529).

It is a junction number, because it is equal to n+sod(n) for n = 40221497 and 40221506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221523) 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, 15000 + ... + 17476.

It is an arithmetic number, because the mean of its divisors is an integer number (3947454).

Almost surely, 2^40221526 is an apocalyptic number.

40221526 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40221526 is a deficient number, since it is larger than the sum of its proper divisors (22937738).

40221526 is a wasteful number, since it uses less digits than its factorization.

40221526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 40221526 is about 6342.0443076346. The cubic root of 40221526 is about 342.6253676417.

The spelling of 40221526 in words is "forty million, two hundred twenty-one thousand, five hundred twenty-six".