40758240 has 48 divisors (see below), whose sum is σ = 128389968. Its totient is φ = 10868736.

The previous prime is 40758239. The next prime is 40758251. The reversal of 40758240 is 4285704.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×40758240² = 3322468255795200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40758198 and 40758207.

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, 41977 + ... + 42936.

It is an arithmetic number, because the mean of its divisors is an integer number (2674791).

Almost surely, 2^40758240 is an apocalyptic number.

40758240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40758240 is an abundant number, since it is smaller than the sum of its proper divisors (87631728).

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

40758240 is a wasteful number, since it uses less digits than its factorization.

40758240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84931 (or 84923 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 40758240 is about 6384.2180413893. The cubic root of 40758240 is about 344.1426305960.

The spelling of 40758240 in words is "forty million, seven hundred fifty-eight thousand, two hundred forty".