564440942 has 16 divisors (see below), whose sum is σ = 959778960. Its totient is φ = 246799872.

The previous prime is 564440941. The next prime is 564440977. The reversal of 564440942 is 249044465.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 564440896 and 564440905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564440941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570803 + ... + 571790.

It is an arithmetic number, because the mean of its divisors is an integer number (59986185).

Almost surely, 2^564440942 is an apocalyptic number.

564440942 is a deficient number, since it is larger than the sum of its proper divisors (395338018).

564440942 is a wasteful number, since it uses less digits than its factorization.

564440942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142627.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 564440942 is about 23757.9658641055. The cubic root of 564440942 is about 826.4301814083.

The spelling of 564440942 in words is "five hundred sixty-four million, four hundred forty thousand, nine hundred forty-two".