40532520 has 128 divisors (see below), whose sum is σ = 141085440. Its totient is φ = 9123840.

The previous prime is 40532497. The next prime is 40532543. The reversal of 40532520 is 2523504.

It is an interprime number because it is at equal distance from previous prime (40532497) and next prime (40532543).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60990 + ... + 61650.

It is an arithmetic number, because the mean of its divisors is an integer number (1102230).

Almost surely, 2^40532520 is an apocalyptic number.

40532520 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 40532520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70542720).

40532520 is an abundant number, since it is smaller than the sum of its proper divisors (100552920).

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

40532520 is a wasteful number, since it uses less digits than its factorization.

40532520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 40532520 is about 6366.5155304923. The cubic root of 40532520 is about 343.5061644892.

The spelling of 40532520 in words is "forty million, five hundred thirty-two thousand, five hundred twenty".