40280902 has 4 divisors (see below), whose sum is σ = 60421356. Its totient is φ = 20140450.

The previous prime is 40280897. The next prime is 40280951. The reversal of 40280902 is 20908204.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070224 + ... + 10070227.

It is an arithmetic number, because the mean of its divisors is an integer number (15105339).

Almost surely, 2^40280902 is an apocalyptic number.

40280902 is a deficient number, since it is larger than the sum of its proper divisors (20140454).

40280902 is a wasteful number, since it uses less digits than its factorization.

40280902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20140453.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 40280902 is about 6346.7237217323. The cubic root of 40280902 is about 342.7938820619.

The spelling of 40280902 in words is "forty million, two hundred eighty thousand, nine hundred two".