40257022 has 8 divisors (see below), whose sum is σ = 65030616. Its totient is φ = 18580152.

The previous prime is 40257013. The next prime is 40257023. The reversal of 40257022 is 22075204.

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

It is a junction number, because it is equal to n+sod(n) for n = 40256984 and 40257002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40257023) 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, 774148 + ... + 774199.

It is an arithmetic number, because the mean of its divisors is an integer number (8128827).

Almost surely, 2^40257022 is an apocalyptic number.

40257022 is a deficient number, since it is larger than the sum of its proper divisors (24773594).

40257022 is a wasteful number, since it uses less digits than its factorization.

40257022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548362.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 40257022 is about 6344.8421572172. The cubic root of 40257022 is about 342.7261283981.

The spelling of 40257022 in words is "forty million, two hundred fifty-seven thousand, twenty-two".