40067280 has 120 divisors (see below), whose sum is σ = 146820960. Its totient is φ = 9711360.

The previous prime is 40067243. The next prime is 40067297. The reversal of 40067280 is 8276004.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5391 + ... + 10449.

It is an arithmetic number, because the mean of its divisors is an integer number (1223508).

Almost surely, 2^40067280 is an apocalyptic number.

40067280 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 40067280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73410480).

40067280 is an abundant number, since it is smaller than the sum of its proper divisors (106753680).

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

40067280 is a wasteful number, since it uses less digits than its factorization.

40067280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089 (or 5080 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 40067280 is about 6329.8720366213. The cubic root of 40067280 is about 342.1868272333.

The spelling of 40067280 in words is "forty million, sixty-seven thousand, two hundred eighty".