40189464 has 96 divisors (see below), whose sum is σ = 129841920. Its totient is φ = 10980288.

The previous prime is 40189439. The next prime is 40189483. The reversal of 40189464 is 46498104.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9859 + ... + 13325.

It is an arithmetic number, because the mean of its divisors is an integer number (1352520).

Almost surely, 2^40189464 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 40189464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64920960).

40189464 is an abundant number, since it is smaller than the sum of its proper divisors (89652456).

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

40189464 is a wasteful number, since it uses less digits than its factorization.

40189464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509 (or 3502 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40189464 is about 6339.5160698590. The cubic root of 40189464 is about 342.5343038438.

The spelling of 40189464 in words is "forty million, one hundred eighty-nine thousand, four hundred sixty-four".