40321534 has 24 divisors (see below), whose sum is σ = 69649848. Its totient is φ = 17359920.

The previous prime is 40321529. The next prime is 40321543. The reversal of 40321534 is 43512304.

It is a super-2 number, since 2×40321534² = 3251652208226312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5404 + ... + 10480.

It is an arithmetic number, because the mean of its divisors is an integer number (2902077).

Almost surely, 2^40321534 is an apocalyptic number.

40321534 is a deficient number, since it is larger than the sum of its proper divisors (29328314).

40321534 is a wasteful number, since it uses less digits than its factorization.

40321534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5128 (or 5109 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 40321534 is about 6349.9239365523. The cubic root of 40321534 is about 342.9091039138.

Adding to 40321534 its reverse (43512304), we get a palindrome (83833838).

The spelling of 40321534 in words is "forty million, three hundred twenty-one thousand, five hundred thirty-four".