40020462 has 24 divisors (see below), whose sum is σ = 87202440. Its totient is φ = 13264560.

The previous prime is 40020457. The next prime is 40020481. The reversal of 40020462 is 26402004.

40020462 is a `hidden beast` number, since 400 + 204 + 62 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 2989 + ... + 9432.

It is an arithmetic number, because the mean of its divisors is an integer number (3633435).

Almost surely, 2^40020462 is an apocalyptic number.

40020462 is an abundant number, since it is smaller than the sum of its proper divisors (47181978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40020462 is a wasteful number, since it uses less digits than its factorization.

40020462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12608 (or 12605 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40020462 is about 6326.1727766478. The cubic root of 40020462 is about 342.0534952740.

Adding to 40020462 its reverse (26402004), we get a palindrome (66422466).

The spelling of 40020462 in words is "forty million, twenty thousand, four hundred sixty-two".