40061532 has 48 divisors (see below), whose sum is σ = 108200960. Its totient is φ = 11299392.

The previous prime is 40061521. The next prime is 40061543. The reversal of 40061532 is 23516004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40061521) and next prime (40061543).

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

It is a junction number, because it is equal to n+sod(n) for n = 40061499 and 40061508.

It is a congruent number.

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, 3618 + ... + 9654.

Almost surely, 2^40061532 is an apocalyptic number.

40061532 is a gapful number since it is divisible by the number (42) 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 40061532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54100480).

40061532 is an abundant number, since it is smaller than the sum of its proper divisors (68139428).

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

40061532 is a wasteful number, since it uses less digits than its factorization.

40061532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6130 (or 6128 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 40061532 is about 6329.4179827216. The cubic root of 40061532 is about 342.1704632247.

Adding to 40061532 its reverse (23516004), we get a palindrome (63577536).

The spelling of 40061532 in words is "forty million, sixty-one thousand, five hundred thirty-two".