40832421 has 8 divisors (see below), whose sum is σ = 62220864. Its totient is φ = 23332800.

The previous prime is 40832411. The next prime is 40832447. The reversal of 40832421 is 12423804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40832421 - 2⁶ = 40832357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40832391 and 40832400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40832411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972180 + ... + 972221.

It is an arithmetic number, because the mean of its divisors is an integer number (7777608).

Almost surely, 2^40832421 is an apocalyptic number.

It is an amenable number.

40832421 is a deficient number, since it is larger than the sum of its proper divisors (21388443).

40832421 is a wasteful number, since it uses less digits than its factorization.

40832421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944411.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 40832421 is about 6390.0251173215. The cubic root of 40832421 is about 344.3512867468.

The spelling of 40832421 in words is "forty million, eight hundred thirty-two thousand, four hundred twenty-one".