40120454 has 24 divisors (see below), whose sum is σ = 66569160. Its totient is φ = 18120960.

The previous prime is 40120397. The next prime is 40120463. The reversal of 40120454 is 45402104.

It is a super-2 number, since 2×40120454² = 3219301658332232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46277 + ... + 47135.

It is an arithmetic number, because the mean of its divisors is an integer number (2773715).

Almost surely, 2^40120454 is an apocalyptic number.

40120454 is a deficient number, since it is larger than the sum of its proper divisors (26448706).

40120454 is a wasteful number, since it uses less digits than its factorization.

40120454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 40120454 is about 6334.0708868784. The cubic root of 40120454 is about 342.3381343940.

Adding to 40120454 its reverse (45402104), we get a palindrome (85522558).

The spelling of 40120454 in words is "forty million, one hundred twenty thousand, four hundred fifty-four".