40621532 has 48 divisors (see below), whose sum is σ = 85542912. Its totient is φ = 16511040.

The previous prime is 40621463. The next prime is 40621549. The reversal of 40621532 is 23512604.

It is a junction number, because it is equal to n+sod(n) for n = 40621498 and 40621507.

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, 45563 + ... + 46445.

It is an arithmetic number, because the mean of its divisors is an integer number (1782144).

Almost surely, 2^40621532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40621532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42771456).

40621532 is an abundant number, since it is smaller than the sum of its proper divisors (44921380).

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

40621532 is a wasteful number, since it uses less digits than its factorization.

40621532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 976 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40621532 is about 6373.5023338821. The cubic root of 40621532 is about 343.7574344618.

The spelling of 40621532 in words is "forty million, six hundred twenty-one thousand, five hundred thirty-two".