40673280 has 112 divisors (see below), whose sum is σ = 130539744. Its totient is φ = 10813440.

The previous prime is 40673263. The next prime is 40673287. The reversal of 40673280 is 8237604.

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

It is not an unprimeable number, because it can be changed into a prime (40673287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122715 + ... + 123045.

Almost surely, 2^40673280 is an apocalyptic number.

40673280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40673280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65269872).

40673280 is an abundant number, since it is smaller than the sum of its proper divisors (89866464).

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

40673280 is an equidigital number, since it uses as much as digits as its factorization.

40673280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 40673280 is about 6377.5606621968. The cubic root of 40673280 is about 343.9033440361.

The spelling of 40673280 in words is "forty million, six hundred seventy-three thousand, two hundred eighty".