40473680 has 40 divisors (see below), whose sum is σ = 101342472. Its totient is φ = 14943744.

The previous prime is 40473659. The next prime is 40473703. The reversal of 40473680 is 8637404.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 379456 + 40094224 = 616^2 + 6332^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-4 number, since 4×40473680⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18419 + ... + 20498.

Almost surely, 2^40473680 is an apocalyptic number.

40473680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40473680 is an abundant number, since it is smaller than the sum of its proper divisors (60868792).

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

40473680 is a wasteful number, since it uses less digits than its factorization.

40473680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38943 (or 38937 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40473680 is about 6361.8928001028. The cubic root of 40473680 is about 343.3398643514.

The spelling of 40473680 in words is "forty million, four hundred seventy-three thousand, six hundred eighty".