40620454 has 16 divisors (see below), whose sum is σ = 69970176. Its totient is φ = 17325000.

The previous prime is 40620451. The next prime is 40620467. The reversal of 40620454 is 45402604.

It is a super-2 number, since 2×40620454² = 3300042566332232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40620451) 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, 3922 + ... + 9829.

It is an arithmetic number, because the mean of its divisors is an integer number (4373136).

Almost surely, 2^40620454 is an apocalyptic number.

40620454 is a deficient number, since it is larger than the sum of its proper divisors (29349722).

40620454 is a wasteful number, since it uses less digits than its factorization.

40620454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13971.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 40620454 is about 6373.4177644338. The cubic root of 40620454 is about 343.7543935967.

The spelling of 40620454 in words is "forty million, six hundred twenty thousand, four hundred fifty-four".