4945640406 has 16 divisors (see below), whose sum is σ = 11304321024. Its totient is φ = 1413040104.

The previous prime is 4945640369. The next prime is 4945640503. The reversal of 4945640406 is 6040465494.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 117753343 = 4945640406 / (4 + 9 + 4 + 5 + 6 + 4 + 0 + 4 + 0 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58876630 + ... + 58876713.

It is an arithmetic number, because the mean of its divisors is an integer number (706520064).

Almost surely, 2^4945640406 is an apocalyptic number.

4945640406 is an abundant number, since it is smaller than the sum of its proper divisors (6358680618).

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

4945640406 is a wasteful number, since it uses less digits than its factorization.

4945640406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117753355.

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 4945640406 is about 70325.2472871585. The cubic root of 4945640406 is about 1703.7564460748.

The spelling of 4945640406 in words is "four billion, nine hundred forty-five million, six hundred forty thousand, four hundred six".