40390760 has 64 divisors (see below), whose sum is σ = 97130880. Its totient is φ = 15079680.

The previous prime is 40390747. The next prime is 40390807. The reversal of 40390760 is 6709304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39050 + ... + 40070.

It is an arithmetic number, because the mean of its divisors is an integer number (1517670).

Almost surely, 2^40390760 is an apocalyptic number.

40390760 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 40390760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48565440).

40390760 is an abundant number, since it is smaller than the sum of its proper divisors (56740120).

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

40390760 is a wasteful number, since it uses less digits than its factorization.

40390760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 40390760 is about 6355.3725303872. The cubic root of 40390760 is about 343.1052328076.

The spelling of 40390760 in words is "forty million, three hundred ninety thousand, seven hundred sixty".