8978465406 has 32 divisors (see below), whose sum is σ = 18316505088. Its totient is φ = 2933461440.

The previous prime is 8978465383. The next prime is 8978465411. The reversal of 8978465406 is 6045648798.

It is a super-2 number, since 2×8978465406² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7735 + ... + 134226.

It is an arithmetic number, because the mean of its divisors is an integer number (572390784).

Almost surely, 2^8978465406 is an apocalyptic number.

8978465406 is an abundant number, since it is smaller than the sum of its proper divisors (9338039682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8978465406 is a wasteful number, since it uses less digits than its factorization.

8978465406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142176.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The square root of 8978465406 is about 94754.7645556676. The cubic root of 8978465406 is about 2078.4234699156.

The spelling of 8978465406 in words is "eight billion, nine hundred seventy-eight million, four hundred sixty-five thousand, four hundred six".