40022057 has 4 divisors (see below), whose sum is σ = 40035840. Its totient is φ = 40008276.

The previous prime is 40022053. The next prime is 40022069. The reversal of 40022057 is 75022004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40022057 - 2² = 40022053 is a prime.

It is a super-2 number, since 2×40022057² = 3203530093022498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40022053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653 + ... + 8970.

It is an arithmetic number, because the mean of its divisors is an integer number (10008960).

Almost surely, 2^40022057 is an apocalyptic number.

It is an amenable number.

40022057 is a deficient number, since it is larger than the sum of its proper divisors (13783).

40022057 is an equidigital number, since it uses as much as digits as its factorization.

40022057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782.

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 40022057 is about 6326.2988389737. The cubic root of 40022057 is about 342.0580393502.

The spelling of 40022057 in words is "forty million, twenty-two thousand, fifty-seven".