40543488 has 54 divisors (see below), whose sum is σ = 116903514. Its totient is φ = 13513728.

The previous prime is 40543471. The next prime is 40543507. The reversal of 40543488 is 88434504.

It can be written as a sum of positive squares in only one way, i.e., 23503104 + 17040384 = 4848^2 + 4128^2 .

It is a super-2 number, since 2×40543488² = 3287548838412288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6495 + ... + 11102.

Almost surely, 2^40543488 is an apocalyptic number.

40543488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

40543488 is an abundant number, since it is smaller than the sum of its proper divisors (76360026).

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

40543488 is a wasteful number, since it uses less digits than its factorization.

40543488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17619 (or 17602 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 40543488 is about 6367.3768539329. The cubic root of 40543488 is about 343.5371456686.

The spelling of 40543488 in words is "forty million, five hundred forty-three thousand, four hundred eighty-eight".