40902434 has 8 divisors (see below), whose sum is σ = 61519260. Its totient is φ = 20396016.

The previous prime is 40902419. The next prime is 40902439. The reversal of 40902434 is 43420904.

It can be written as a sum of positive squares in 2 ways, for example, as 40005625 + 896809 = 6325^2 + 947^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40902439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26669 + ... + 28160.

Almost surely, 2^40902434 is an apocalyptic number.

40902434 is a deficient number, since it is larger than the sum of its proper divisors (20616826).

40902434 is a wasteful number, since it uses less digits than its factorization.

40902434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55204.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 40902434 is about 6395.5010749745. The cubic root of 40902434 is about 344.5479874704.

The spelling of 40902434 in words is "forty million, nine hundred two thousand, four hundred thirty-four".