40392902 has 8 divisors (see below), whose sum is σ = 66097512. Its totient is φ = 18360400.

The previous prime is 40392887. The next prime is 40392931. The reversal of 40392902 is 20929304.

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

It is a congruent number.

It is an unprimeable number.

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, 917999 + ... + 918042.

It is an arithmetic number, because the mean of its divisors is an integer number (8262189).

Almost surely, 2^40392902 is an apocalyptic number.

40392902 is a deficient number, since it is larger than the sum of its proper divisors (25704610).

40392902 is a wasteful number, since it uses less digits than its factorization.

40392902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836054.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 40392902 is about 6355.5410469920. The cubic root of 40392902 is about 343.1112978781. Note that the first 3 decimals are identical.

The spelling of 40392902 in words is "forty million, three hundred ninety-two thousand, nine hundred two".