40169052 has 144 divisors (see below), whose sum is σ = 129921792. Its totient is φ = 10160640.

The previous prime is 40169047. The next prime is 40169069. The reversal of 40169052 is 25096104.

It is a super-2 number, since 2×40169052² = 3227105477157408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119028 + ... + 119364.

Almost surely, 2^40169052 is an apocalyptic number.

40169052 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 40169052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64960896).

40169052 is an abundant number, since it is smaller than the sum of its proper divisors (89752740).

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

40169052 is a wasteful number, since it uses less digits than its factorization.

40169052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 40169052 is about 6337.9059633289. The cubic root of 40169052 is about 342.4763036157.

The spelling of 40169052 in words is "forty million, one hundred sixty-nine thousand, fifty-two".