4240400646 has 16 divisors (see below), whose sum is σ = 8687650608. Its totient is φ = 1378992000.

The previous prime is 4240400617. The next prime is 4240400657. The reversal of 4240400646 is 6460040424.

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, 8618455 + ... + 8618946.

It is an arithmetic number, because the mean of its divisors is an integer number (542978163).

Almost surely, 2^4240400646 is an apocalyptic number.

4240400646 is an abundant number, since it is smaller than the sum of its proper divisors (4447249962).

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

4240400646 is a wasteful number, since it uses less digits than its factorization.

4240400646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17237447.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 4240400646 is about 65118.3587477449. The cubic root of 4240400646 is about 1618.5854448171.

The spelling of 4240400646 in words is "four billion, two hundred forty million, four hundred thousand, six hundred forty-six".