40491360 has 384 divisors, whose sum is σ = 176117760. Its totient is φ = 8460288.

The previous prime is 40491349. The next prime is 40491377. The reversal of 40491360 is 6319404.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 393069 + ... + 393171.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^40491360 is an apocalyptic number.

40491360 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 40491360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88058880).

40491360 is an abundant number, since it is smaller than the sum of its proper divisors (135626400).

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

40491360 is a wasteful number, since it uses less digits than its factorization.

40491360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 40491360 is about 6363.2821719613. The cubic root of 40491360 is about 343.3898504587.

The spelling of 40491360 in words is "forty million, four hundred ninety-one thousand, three hundred sixty".